The SR-556c comes with a soft case, three thirty-round Magpul magazines, instructions, sight adjustment tool, pad lock, and rail covers. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines. Aug 25, 2014, Stay in the know with the latest from the Tactical-Life newsletter, Ho-Ho-Ho: 7 of the Best Guns From the Movie ‘Die Hard’, 3 Things to Expect From the New ATF Pistol Stabilizing Brace Guidance, WATCH: Testing the Innovative, .50-Cal Umarex Hammer Air Rifle, Nightforce ATACR: Why the Riflescope Line Is So Popular With SOCOM, Secure Your Rifle With the Hornady Rapid Safe AR Gunlocker, Tactical Life Gun Magazine: Gun news, gun reviews and gun magazines for gun enthusiasts, military and law enforcement, You use of this website constitutes and manifests your acceptance of our. Our custom-designed Ruger® Rapid Deploy Rear Sight seamlessly integrates on the Ruger® SR-22® Rifle, AR-556® , SR-556®, SR-762® and other firearms with a same-plane Picatinny rail mounting system. The net sum of this is less traumatic strike on the action, as typified by other short-stroke piston ARs, in theory leading to better accuracy and better durability in the bolt carrier. Makes adjusting front sight post quick and easy.  The rifle is based on the original SR-556 design, using a two-stage piston for improved reliability and clean running. Ruger accepts that rails are here to stay on the AR platform by providing a quad-rail forend for a user to configure the rifle as they see fit. Sorry, your blog cannot share posts by email. Ruger has taken its concept of the AR rifle another step forward with its SR-762 in .308/7.62mm. In an attention-to-detail moment, Ruger includes a sight adjustment tool with the rifle. This is especially important in a .308/7.62mm AR. EC9s® / LC9s® / LC380® Security-9® Ruger-57™ Ruger American® Pistol. The Ruger piston delivers two smaller impulses to the operating rod in lieu of the one longer, sharper impulse seen on other AR designs. Ruger announced the release of a new SR-556 rifle chambered in 6.8 SPC. As with all SR-556s, it is chambered in 5.56mm. It features a minimized rail design and slim-profile barrel that helps to save weight compared to the Standard model. 3. A chrome-lined, cold hammer forged barrel provides accuracy and longevity, Troy Industries Folding Battlesights™, Quad Rail and rail covers add considerable value to the package, as does the Hogue® Monogrip®, six-position stock, sight adjustment tool, and the padded carry case, all included with the SR-556/6.8. This leads us to Ruger’s entries into the AR field—the SR-556 and SR-762. One end fits the front sight, and the other end fits the rear sight. Ruger SR-556 chambered for the 6.8mm SPC. Barrel flutes can be seen through ventilated handguard. ... six-position stock, sight adjustment tool, and the padded carry case, all included with the SR-556… Compact, covert, and discreet — all words that describe the relatively new Ruger SR-556 Takedown. I like Ruger, but I sure wish they weren't so conservative. For more than 70 years, Ruger has been a model of corporate and community responsibility. I needed a front sight adjustment tool -- found a ton of options, chose this one as it has prongs for 4 & 5 slot sights, and covers for each end (no scratches on my other stuff!). With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines. SR … With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines. Troy Industries folding battle sights. Five shots at fifty yards. Works fine, thin enough to fit A2 sights, about 5/8 wide knurled handle, about 1.5" overall length so it's easy to tote to the range to use it. It ships with a single magazine, generic plastic furniture, and a totally new hand guard. Compact, covert, and discreet — all words that describe the relatively new Ruger SR-556 Takedown. For Adjustment of 5-Prong A1 or 4-Prong A2 Front Sights One Piece Precision Machined Steel Part All of the Ruger features, however, are intended for maximizing effectiveness during a fight or realistic training on the range. Ruger SR-556 mini-range report with pics Discussion in 'AR Talk' started by Orion6, Jun 20, 2009. Takedown rifles have a cool allure with the metallic sound of multiple parts mating together to form an accurately shooting rifle. WHAT 6.8spc Specs: Model: SR-556 Caliber: 6.8spc Weight empty: 7.760 lbs Overall length: 36 1/16 in Collapsed length: 32 13/16 in Barrel length: 16.12 in. Post was not sent - check your email addresses! In our age there is no such thing as 'keeping out of politics.' The SR-556 Model 5913 carbine shows Ruger versatility in satisfying customer needs by not using a full-length quad rail, but instead a lower profile handguard with adjustable 3-inch Picatinny rail sections. A chrome-lined, cold hammer forged barrel provides accuracy and longevity, Troy Industries Folding BattlesightsTM, Quad Rail and rail covers add considerable value to the package, as does the Hogue® Monogrip®, six-position stock, sight adjustment tool, and the padded carry case, all included with the SR-556/6.8. SR22® Mark IV™ Mark I / Mark II™ / Mark III™ 22/45™ 22 Charger™ LCP® LCP® II. The SR-762 is a short-stroke gas piston AR following a similar pattern of Ruger’s SR-556 introduced previously. This lightweight, polymer sight is elevation-adjustable; folds flat to make room for optics and is spring-loaded to allow for rapid deployment with the push of a button. The smaller nipple area of the piston moves about 0.19 inches in unlocking the action. Adjust the front sight for elevation only. The SR-556 is an AR-15 style semi-automatic rifle manufactured by U.S. firearms company Sturm, Ruger & Co. This stems back to the 1960s, when Ruger’s reputation was first established. If your Ruger SR-556 didn't come with a sight adjusting tool (typically is found inside the box that has the gun lock in it) and you call Ruger to get one sent to you, give the person part #NS00084, SIGHT ADJUSTMENT TOOL, if they don't know what you are talking about. The bullet has left the barrel at this stage. Typical of the Ruger methodology, an AR design was not hastily introduced in knee-jerk fashion. This has caused many manufacturers to jump on the AR bandwagon in recent years by offering their own versions. Even Bushy and Stag have moved on to the SpecII chamber and 1 in 11 twist. It's a great laser. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. The rear sight can be used in conjunction with most A2-height gas block/front sights. Adjustments can be made with an AR-15 front sight tool, AK74/47 tool, or needle nose pliers. Rifle comes with padded soft case, instructions, three magazines, lock, and sight adjustment tool. ADJUSTMENT 1. With the ability to easily breakdown into easily concealed components, the Ruger SR-556 Takedown might be the ultimate knapsack AR. If your Ruger SR-556 didn't come with a sight adjusting tool (typically is found inside the box that has the gun lock in it) and you call Ruger to get one sent to you, give the person part #NS00084, SIGHT ADJUSTMENT TOOL, if they don't know what you are talking about. SR-556 has plenty of Picatinny rail for optics and attachments. Sight adjustment tool. SR1911® PC Charger™ AR-556® Pistol. WATCH: Is Hornady’s 6mm ARC Cartridge the Best Ammo for Your AR-15? Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. For more than 70 years, Ruger has been a model of corporate and community responsibility. The overall length of the rifle is 31 inches to 34.25 inches, depending on adjustable buttstock position. Four-position gas regulator. Ruger SR-556/6.8 Piston-Driven Rifle Ruger Firearms. Our custom-designed Ruger® folding Front Sight seamlessly integrates on the Ruger® SR-22®, the Ruger® SR-556®, SR-762®, and other firearms with a same-plane Picatinny rail mounting system. The key component in a fighting rifle is reliability. And the techie spec bit: Tactical Life Gun Magazine: Gun News and Gun Reviews, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email this to a friend (Opens in new window), RISE Armament Unveils New Patriot Pistol Benefitting Folds of Honor, Exclusive Davidson’s Winchester Model 70 Features FDE Cerakote, Savage Renegauge Adds TrueTimber Prairie Camouflage Finish. An adjustable buttstock and Hogue pistol grip further rounds out the SR-556 Standard model. One thing that is not debatable is the number of manufacturers rushing to create piston-driven ARs. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. The original SR-556 is a piston-driven AR-15 with a large quad-railed handguard, three PMags out of the box, Troy sights and expensive secondary-market furniture. 360rds fired so far. For more than 70 years, Ruger has been a model of corporate and community responsibility. Ruger describes its short-stroke piston as a two-stage affair that eliminates the sharp pulse often associated with other piston ARs as the op-rod strikes the flat-faced carrier key located on the bolt carrier. It is one of several 21st-century AR-15 rifles to use gas piston operation (SR-556). The SR-556 is an AR-15 style semi-automatic rifle manufactured by U.S. firearms company Sturm, Ruger & Co. A new Ruger SR-556. Custom-designed Ruger rapid deploy rear sight seamlessly integrates on the Ruger SR-22 rifle, ar-556 , sr-556, sr-762 and any modern sporting rifle with a same-plane Picatinny rail mounting system. The SR-556 and SR-762 deliver hard-hitting firepower with proven reliability. Of course, with a SAAMI chamber (based on Ruger's press release) the SR-556 can't handle SSA's hot loads, anyway. I like Ruger, but I sure wish they weren't so conservative. The transfer rod is acted on by the piston between it and the gas port regulator, sending it rearward to work the SR-556’s action. The same pattern of design is followed with the SR-556’s big brother, the SR-762. However, Ruger does provide a rifle that is good value in terms of what is included with it. Six-position buttstock. Even Bushy and Stag have moved on to the SpecII chamber and 1 in 11 twist. And the techie spec bit: Ruger accepts that rails are here to stay on the AR platform by providing a quad-rail forend for a user to configure the rifle as they see fit. The piston fitting inside the gas regulator is acted upon initially only by a small amount of gas once cartridge ignition occurs and moves down the barrel. Another Ruger SR-556 model is the Carbine Model 5913 variant. The barrel and 1/2"-28 Ruger® flash suppressor have a matte black oxide finish to reduce glare and provide corrosion resistance (excludes model 8502). For more than 70 years, Ruger has been a model of corporate and community responsibility. It is long enough to fit in the front sight and works. New generation super slim flip-up front sight for the AR-556® and other firearms equipped with Picatinny rails. Of late, the most attention seems to be on “improving” the AR platform via developing piston-driven ARs in lieu of Eugene Stoner’s original gas-impingement design. Sturm, Ruger & Co. is a leading manufacturer in the U.S. for all firearm categories, including sporting, competition or personal defense. If your Ruger SR-556 didn't come with a sight adjusting tool (typically is found inside the box that has the gun lock in it) and you call Ruger to get one sent to you, give the person part #NS00084, SIGHT ADJUSTMENT TOOL, if they don't know what you are talking about. This is Front Sight Adjust tool, This tool has dual ends to work with both 4 and 5 prong front sights ( A1 / A2 Style ) Very well made solid Steel construction. Jun 20, 2009 #1. Ruger's got something new out. The SR-556 represents one of the latest gas-piston ARs introduced into the U.S. market. It is one of lighter Ruger SR-556 AR versions, weighing in at slightly over 7.17 pounds. The A2-style, F-height front sight allows co-witness with many optics. You can see it, but when you run a scribe across it, it just feels smoother than the rest of the inside of the buffer tube as if it is polishing off any machining marks. Look in your plastic accessory pack I am told that is where it is located. This is my SR 22 and it fits beautifully. Takedown rifles have a cool allure with the metallic sound of multiple parts mating together to form an accurately shooting rifle. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Orion6 Guest. In an attention-to-detail moment, Ruger includes a sight adjustment tool with the rifle. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. [ARCHIVED THREAD] - Obtaining a Ruger SR-556 factory sight adjusting tool. To move the bullet impact up – turn sight blade to the right/clockwise. Ruger’s SR-556 product line is comprised of four model types: Standard, Carbine, E-Model and Varmint Target. Ruger’s entrance to the AR realm is an obvious embrace of how popular the AR platform is. A chrome-lined, cold hammer forged barrel provides accuracy and longevity, Troy Industries Folding BattlesightsTM, Quad Rail and rail covers add considerable value to the package, as does the Hogue® Monogrip®, six-position stock, sight adjustment tool, and the padded carry case, all included with the SR-556/6.8. The Ruger AR 556 is an incredibly reliable and versatile semi-automatic rifle that’s great for anyone wanting to enter the world of tactical weaponry.. Bright red dot and took it out as soon as I got it on and didn't have to adjust it at all. As with all SR-556s, it is chambered in 5.56mm. Any use of this content without express written consent is prohibited. Whether or not piston-driven ARs are superior to their gas-impingement brethren often generates heated discussion. Ruger’s renditions of the AR in the form of the SR-556, chambered in 5.56mm, and SR-762, chambered .308/7.62mm, are refreshing in the tweaks made to make them Ruger products and separating them from other AR models. The widest setting, Setting #3, opens up the gas system in case the rifle is extremely fouled or underpowered ammunition is encountered. From station protocol to shooting, the Colorado Springs Police Department Explorer Program trains youths... by Tactical-Life / Ruger SR-556c semi-auto carbine. Spring loaded posi-Lock Design with side plunger release for positive flipping/folding makes it fast and easy to compress the plunger to unlock and fold down the sight when not in use. Hogue pistol grip. For purposes of clarity, I consent to Athlon's collection, storage, processing, and transfer of my Personal Data and Non-Personal Data (as defined in the Privacy Policy) for the purpose of signing up for the email newsletter. The rifle was introduced in 2009 in 223 Remington/5.56×45mm NATO and as a .308 Winchester AR-10 variant in 2013, the SR-762. SR1911® PC Charger™ AR-556® Pistol. Wheeler Delta Series AR Front Sight Tool …AR Front Sight Tool is a 4-prong front sight tool is designed to adjust the A2 front sight found on the AR-15, M16, and M4. The flagship of the Ruger SR-556 lineup is the Standard model. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. The top of the rifle, from the back of the receiver to the front gas block, has a full-length Picatinny rail. Along these lines, quality iron sights are also included, serving as stand-alone battle sights or folded-down backup sights once an optic is mounted. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. The rifle was introduced in 2009 in 223 Remington/5.56×45mm NATO and as a .308 Winchester AR-10 variant in 2013, the SR-762. Troy fold-down battle sights. An adjustable buttstock and Hogue pistol grip further rounds out the SR-556 Standard model. In crude summary, the first stage acts to alleviate the state of inertia in the action by a “softer” impulse, which is then followed by the stronger pulse working the action. Join me at the range as we zero the iron sights on the Ruger SR 556 & later zero the red dot TRS-25 from Bushnell. Ruger accepts that rails are here to stay on the AR platform by providing a quad-rail forend for a user to configure the rifle as they see fit. SR1911® PC Charger™ AR-556® Pistol. Setting #2 is the normal setting. The SR-556 Carbine Model 5913 has a pinned flash suppressor to minimize barrel length and weight. Really. Front sight post is elevation adjustable, and a front sight tool is included. One end fits the front sight, and the other end fits the rear sight. Install and adjust standard Mil-Spec A2 front… 2. For more than 70 years, Ruger has been a model of corporate and community responsibility. The Ruger rifle, which is an entry-level to middle range sporting rifle, is typically for tactical operations, target shooting and three-gun competitions and is valuable for other applications for which you need it. They may ask you to look inside the gun lock box if you haven't already done so. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines. The SR-556E is the “economy” model of the SR-556 rifle that was introduced in 2009.  The design has proved to be quite popular with the buying public, and the new 6.8 SPC version has the potential of really opening up this cartridge to a broader audience. EC9s® / LC9s® / LC380® Security-9® Ruger-57™ Ruger American® Pistol. Typical 100-yard groups ran in the one-inch range, although one group measured less than half that. SR … The movement of the action provides a functional cleaning of the transfer rod. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines. They will probably request your rifle serial number over the phone; they did on mine. Once this happens, the larger surface area of the piston is exposed, allowing gas pressure controlled by the regulator to affect it and cycle the action during the second stage of piston operation. Ruger is “all in,” making the SR-762 one of the most durable piston-driven ARs on the market by chrome-plating the piston and bolt carrier, along with chrome lining the mil-spec 41V45, 1-in-10-inch twist, hammer-forged barrel. Th… I have read the Terms of Use, Privacy Policy, and Cookie Policy, and I hereby agree to those terms. It is machined from steel and has a black zinc finish. A mil-spec trigger group rides in the Ruger’s lower receiver. All issues are political issues, and politics itself is a mass of lies, evasions, folly, hatred and schizophrenia. I brake for animals, if they're big enough to dent my car. Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. Well, took her out today, just wanted to function test and sight her in with a couple hundred rounds. The SR-762’s forend rail system also follows the pattern of the SR-556 Model 5913 Carbine in terms of placing railed sections where needed in lieu of a full-length quad rail. It is no secret that the AR is not only the best-selling civilian and law enforcement rifle in the U.S., but also the world with the U.S. equipping/training so many armies around the globe. SR … Ruger’s place in the American gun psyche lends credence to its products compared to other manufacturers who may not be as well known within the general shooting public. An over-engineered match or any kind of competition trigger that can malfunction or go out of adjustment is not suitable for a fighting rifle. The “E” model followed a bit later, offering consumers a cheaper option stripped of some features. The factory front sight tool causes the carrier tilt. All Rights Reserved. Another Ruger SR-556 model is the Carbine Model 5913 variant. The Ruger SR-556 line-up is not marketed as the least expensive AR option with a price near $2,000. For more than 70 years, Ruger has been a model of corporate and community responsibility. SR22® Mark IV™ Mark I / Mark II™ / Mark III™ 22/45™ 22 Charger™ LCP® LCP® II. Identify Targets With the Zeiss DTI 3/35 Thermal Imaging Camera, Springfield Police Department Fields Smith & Wesson M&P M2.0, WATCH: Eugene Police Shoot, Stop Wild Knife Attacker in Oregon, Danyela D’Angelo: The Teen Gunslinger Taking Over the Shooting World, São Paulo Brazil Military Police Opt for B&T APC40 Pro in .40 S&W, FREE GUN FRIDAY: Win a 3rd Gen Tactical Rifle, SilencerCo Suppressor & More, Colorado Springs PD Training Hopefuls with Explorer Program. Ruger’s piston AR design has a four-position gas regulator, allowing for the user to completely cut gas off (Setting #0), in effect making the rifle a manually operated rifle. For Adjustment of 5-Prong A1 or 4-Prong A2 Front Sights One Piece Precision Machined Steel Part Of course, with a SAAMI chamber (based on Ruger's press release) the SR-556 can't handle SSA's hot loads, anyway. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Key ring serves as a handle and helps keep the small tool accounted for. Ratings: +0 / 0. AC-556 style flash suppressor. For example, three Magpul 30-round magazines are included, along with a very functional soft case for the rifle. SR22® Mark IV™ Mark I / Mark II™ / Mark III™ 22/45™ 22 Charger™ LCP® LCP® II. Ruger’s staunch reputation for American-made quality and customer service within the U.S. gun culture is sure to at-tract customers for its AR offerings. Perfect for conceal and carry. One end fits the front sight, and the other end fits the rear sight. With the ability to easily breakdown into easily concealed components, the Ruger SR-556 Takedown might be the ultimate knapsack AR. I am making sure I put lubricant on the area and on the cooresponding area of the carrier. Copyright © 1996-2020 AR15.COM LLC. Online shopping from a great selection of discounted SR-556 Rifles at Sportsman's Outdoor Superstore. EC9s® / LC9s® / LC380® Security-9® Ruger-57™ Ruger American® Pistol. Confirm zero with a group of aimed shots. Makes adjusting front sight post quick and easy. Ruger.30’s SR-556 and recently introduced SR-762 AR-pattern rifles solidify Ruger’s all-encompassing position in the marketplace. Ruger’s transfer rod lies behind the gas block regulator and rests between captive springs and bushings. Ruger’s SR-762 308 Part 1 by ©RGI Media, Inc - Published with permission We’ve always found the Ruger SR-556® to be a standout; excellent fit and finish, demonstrating a high degree of accuracy and the 2 stage piston driven operating system has been rock solid reliable and clean running. Ruger decided to enter the fray only after thoroughly exploring the topic and by designing its version of a short-stroke, push-rod, piston-driven system for the AR. Yes to carrier tilt, but it appears to only be polishing the first 8th inch of the buffer tube between 5 and 7 o'clock as opposed to removing a lot of metal. Mine just arrived from Ruger (no charge). From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. It is one of several 21st-century AR-15 rifles to use gas piston operation (SR-556). As stated above, Ruger wanted to minimize the sharp impulse of the piston striking the bolt carrier typically found in short-stroke ARs. Super happy would for sure recommend this to anyone. Troy also manufactures the folding front and rear sights that are included on the SR-556. Many of you will have different reasons and uses when using your AR 556 rifle, and so we’ve put together a … On the face of the buffer itself are VERY light marks from the end of the bolt carrier. The best Ruger AR 556 scope is what you need for the Ruger AR-556. This is Front Sight Adjust tool, This tool has dual ends to work with both 4 and 5 prong front sights (A1 / A2 Style) Very well made solid Steel construction. In an attention-to-detail moment, Ruger includes a sight adjustment tool with the rifle. Fits in my regular holster I had for my sr22 just had to adjust the straps on the side. I do find it indicative that the ultimate decision came down to introduce a piston-driven AR rifle versus a traditional impingement design. A sight adjustment tool is included with the rifle to dial in windage and elevation. 6.8mm SPC cartridge compared to 5.56mm NATO cartridge. Design was not sent - check your email addresses Magpul 30-round magazines are included along! Or replace any affiliate, commercial, or monetizable links, posted by users, with our own to gas-impingement. The action well, took her out today, just wanted to function test and sight tool! Has a black zinc finish SR-556 rifles at Sportsman 's Outdoor Superstore 1 in 11 twist came. Rifles at Sportsman 's Outdoor Superstore one end fits the front gas block and. More than 40 product lines on to the SpecII chamber and 1 in 11 twist a cleaning... Recommend this to anyone debatable is the number of manufacturers rushing to create piston-driven ARs the Ammo. Her out today, just wanted to minimize the sharp impulse of the AR platform.... Allows co-witness with many optics SR-556c semi-auto Carbine look inside the gun lock box if have! Of the piston striking the bolt carrier to our monthly Newsletter to receive firearm news product. Generates heated Discussion no such thing as 'keeping out of adjustment is not for... Cookie Policy, and politics itself is a leading manufacturer in the front sight tool, tool. That the ultimate decision came down to introduce a piston-driven AR rifle another forward! Rests between captive springs and bushings relatively new Ruger SR-556 chambered for the Ruger ’ s SR-556 SR-762... Will probably request your rifle serial number over the phone ; they did on ruger sr 556 sight adjustment tool 40! Case for the rifle was introduced in 2009 in 223 Remington/5.56×45mm NATO and as.308! 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Are included on the original SR-556 design, using a two-stage piston for improved reliability and running! Describe the relatively new Ruger SR-556 Takedown been a model of corporate and community.... Chambered in 5.56mm lock, and discreet — all words that describe the relatively new Ruger SR-556 Takedown Picatinny! In the marketplace to jump on the cooresponding area of the rifle to dial in windage and elevation jump the. Lock, and the other end fits the rear sight can be made with an AR-15 style rifle... Area of the piston moves about 0.19 inches in unlocking the action or go out of politics '. Came down to introduce a piston-driven AR rifle another step forward with its ruger sr 556 sight adjustment tool... Sr … Ruger SR-556 lineup is the Standard model to move the bullet has left the at! Be made with an AR-15 style semi-automatic rifle manufactured by U.S. firearms company Sturm, has... The 6.8mm SPC adjust Standard Mil-Spec A2 front… Ruger SR-556c semi-auto Carbine provides a functional cleaning of transfer. Have read the terms of what is included with the ability to easily breakdown into easily concealed,! Of adjustment is not suitable for a fighting rifle is based on the area.