MSR shooters that desire a larger cartridge will be excited to find that a replaceable barrel kit chambered in 300 AAC Blackout is available onShopRuger.com. MSR shooters that desire a larger cartridge will be excited to find that a replaceable barrel kit chambered in 300 AAC Blackout is available on ShopRuger.com. Quickly and easily convert your Ruger SR556 Takedown rifle to .300 AAC Blackout with this barrel kit. The SR-556 Takedown maintains the best-of-class elements of the SR-556 and comes standard with a host of accessories that todays shooters demand. The quad rail handguard provides ample mounting area for accessories and provides a stiff and secure mount for the takedown mechanism. The slider bar for removing the barrel is located on the bottom rail under the gas block and is out of the way of accessories.
The upper receiver is complete with dust cover, forward assist, and metal flip-up windage adjustable rear sight. The SR-556 Takedown maintains the best-of-class elements of the SR-556 and comes standard with a host of accessories that today's shooters demand. The SR-556 Takedown maintains the best-of-class elements of the SR-556 and comes standard with a host of accessories that today's shooters demand. Like the popular Ruger 10/22 Takedown®, the SR-556 Takedown was designed with ease of use in mind. The barrel is removed from the upper receiver by simply moving the slider bar towards the breech, rotating the barrel and pulling it free – no tools required.
Installation is simpler yet – just slide the barrel into the upper and twist until it locks. The takedown mechanism provides a repeatable point of impact and employs a patent-pending, chrome-plated, two-stage piston driven operating system for a cleaner, cooler running, reliable firearm that is truly state-of-the-art. Like the popular Ruger 10/22 Takedown, the SR-556 Takedown was designed with ease of use in mind. The barrel is removed from the upper receiver by simply moving the slider bar towards the breech, rotating the barrel and pulling it free - no tools required.
Installation is simpler yet - just slide the barrel into the upper and twist until it locks. The removable 16.1″, chrome-lined, cold hammer-forged Mil-Spec 41V45 chrome-moly-vanadium steel barrel is chambered in 5.56 NATO. The headspace is set at the factory so no adjustment is necessary.
The barrel assembly includes an elevation & windage adjustable flip-up front sight so that the zero stays with the barrel. The SR-556 Takedown also sports the shorter Ruger flash hider on the 1/2″-28 threaded muzzle. The removable 16.1-inch, chrome-lined, cold hammer-forged Mil-Spec 41V45 chrome-moly-vanadium steel barrel is chambered in 5.56 NATO. The SR-556 Takedown also sports the shorter Ruger flash hider on the ½-28-inch threaded muzzle.
The takedown barrel is removed from the upper receiver by simply moving the slider bar towards the breech, rotating the barrel and pulling it free - no tools required. The takedown mechanism provides a repeatable point of impact. Compact and easy to maintain, the SR-556® Takedown sets a new standard for the modern sporting ri? Like the popular 10/22 Takedown®, the SR-556® Takedown was designed with ease of use in mind. The SR-556 takedown barrel is designed to be removed from the upper receiver without any tools – just like the 10/22 takedown. By simply moving the slider bar towards the breech, and rotating the barrel, the shooter is able to pull the barrel off the receiver.
Installation is even easier in design, simply requiring the shooter to slide the barrel into the upper and twist until it locks into place. Ruger has designed the takedown mechanism to provide a repeatable point of impact, so shooters do not have to worry about re-zeroing their rifle after disassembly. The takedown barrel is removed from the upper receiver by simply moving the slider bar towards the breech, rotating the barrel and pulling it free – no tools required. While the lower receiver is standard AR fare, the rifle's barrel can be removed from the upper with only a twist of the wrist. When assembled, eight lugs located on the outside surface of the barrel extension solidly engage the inner splines of the upper receiver's barrel nut to hold the two parts together.
To remove the barrel, just lock the bolt back, depress the spring-loaded latch located at the front of the handguard and twist the barrel assembly an eighth of a turn counter-clockwise. The barrel, gas block and front sight will now freely slide from the handguard. The takedown's novel feature allows for simple breakdown for easy storage and mobility.
The barrel is removed from the upper receiver by simply moving the slider bar towards the breech, rotating the barrel and pulling it free — no tools required. Installation is simpler yet — just slide the barrel into the upper and twist until it locks. In addition to the standard SR-556 Take Down rifle in 5.56mm, Ruger has already produced a replacement barrel kit in the popular .300 AAC Blackout cartridge.
The .300 BLK kit comes range-ready, with a head space that is already set at the factory for an installation as easy as described above. The .300 BLK kit comes with its own flip-up front sight with elevation and windage adjustments, and also comes with 30-round magazines clearly marked "300 AAC BLACKOUT" to ensure magazines are easily differentiated. The Ruger SR-556 was a welcomed addition to the AR-15 market in 2009. At the time the AR-15 market was on fire, with record sales, accessory development, and design innovations. The market became saturated with manufacturers offering the full range of quality and advanced features; as well as, gimmicks and eye candy.
Ruger's SR-556, however, delivered the time-honored craftsmanship expected of a Ruger firearm. Features included a piston driven gas system, chrome-lined barrel and bolt carrier, full quad rail, folding iron sights, and enhanced Ruger pistol grip. All the features were tailored for specific benefits to the shooter, without unnecessary frills to increase price. For a larger cartridge, replaceable barrel kits chambered in .300 AAC Blackout are available on ShopRuger.com. The Ruger SR-556 Takedown has a .300 Blackout barrel assembly available from the factory.
The barrel is clearly marked ".300 BLK" in big letters on both sides of the gas block to discourage shooters from mistakenly putting the wrong ammunition in the wrong barrel. Putting .300 BLK ammo in a 5.56x45mm barrel can cause the rifle to have a catastrophic failure and lead to serious injuries. In addition to the rifle, Ruger shipped me a 300 Blackout conversion kit. The kit includes both a barrel assembly and two magazines marked as being for the larger caliber. When developed, the 300 Blackout was designed to work with standard 5.56mm NATO magazines.
But having clearly marked, dedicated magazines can help a shooter avoid problems with trying to shoot the wrong ammuntion in the SR-556 Takedown. Thankfully, the carrying case has room enough to carry the gun and both barrel assemblies in addition to the magazines in the front pockets. Takedown barrel is removed from the upper receiver by moving the slider bar towards the breech, rotating the barrel and pulling it free .
For installation, slide the barrel into the upper and twist until it locks. As both cartridges utilize the same bolts, buffer springs and magazines, a 10-second barrel change effectively makes the SR-556 Takedown a dual-cartridge-capable rifle. To minimize the risk of shooters potentially trying to fire a .300 Blackout cartridge through the 5.56 NATO barrel, all components included in the kit are emblazoned with ".300 BLK" on the side. Standard features include metal flip-up sights, a dust cover, a forward assist and a flash hider.
Our evaluation gun featured a quad-rail handguard, however, Ruger has introduced a new model furnished instead with a KeyMod-compatible handguard. The guns ship disassembled in a nondescript, easily toteable, 24″ nylon case, with three, 30-round Magpul PMAGs and three rail covers. The rifle features a "two-stage" piston mechanism as opposed to the semi-direct impingement system of the AR-15.
Several key parts, such as the short stroke gas piston, gas regulator, and bolt/carrier group are chrome plated. The bolt carrier features an integral lug in place of the AR-15's gas key. The flash suppressor is similar to Ruger's AC-556 and Mini-14GB. The Takedown's operating system—with energy from the piston acting on a transfer rod that in turn acts upon the bolt carrier—is ideally suited for life in a takedown model.
The gun's gas block and piston are part of the barrel assembly, and the transfer rod is a part of the upper, with the interface between these two components providing the perfect location for barrel separation. Completing the package, Ruger includes three rail covers for the handguard and a soft carrying case. The case is a lot shorter than a standard rifle case, as it is intended to carry the gun when it is broken down. The case has two large, zippered pockets on the front that allow for the storage of magazines, ammunition or other gear. In practice, it would be easy to store this case behind a truck seat or in a trunk.
The barrel assembly includes an elevation and windage adjustable flip-up front sight so that the zero stays with the barrel. With front and rear folding iron sights, the SR-556® Takedown is ready to go to the range right out the box. The front sight is both elevation & windage adjustable, meaning that when you swap barrels, the zero stays with the barrel.
Modeled after the original SR-556 in 5.56mm NATO, the new gun adds the ability to twist and remove the barrel in just a few seconds. When matched with a 300 Blackout kit, the owner can literally change the gun from 5.56mm to 300 BLK in about 30 seconds. To take the barrel off, simply lock the bolt to the rear, pull down on two tabs along the rails under the front sight assembly and twist the barrel about an eighth of a turn. The upper assembly is a single unit, and while the author tested a quad-rail model, a KeyMod handguard is now available. The barrel assembly includes the front sight to ensure accuracy after being disassembled.
The SR-556 Takedown has a standard lower receiver with a Magpul MOE SL buttstock. Precision-rifled, chrome-lined, cold hammer-forged Mil-Spec 41V45 chrome-moly-vanadium steel barrel ensures accuracy and longevity. A Ruger® flash suppressor is provided and the ½"-28 threaded barrel allows for standard muzzle accessories to be installed.
MSRs are modular, so they lend themselves to changing calibers pretty well, but it still takes some effort. Ruger is selling a replaceable barrel kit chambered in .300 AAC Blackout. It has all the same specs as the 5.56 barrel and can be swapped out just as easily as the rifle breaks down. The SR is a nice rifle but it needs to be for the price, and it had its own growing pains. I had previously purchased two S&W ARs and they were as good or better than the Ruger rifles. I just bought a Ruger AR556 and while it looks and runs well, it was not without its problems.
I have read reports of the front sight taper pins coming out and I checked mine when I got it home. One was so easily tapped out, I am sure it would have fallen out during firing. I found a taper pin while picking up my brass at the local range.
The range officer told me that guy was shooting his AR556 and the pin was walking out on him. They drove it back in, but he apparently failed to notice it came out completely when he continued shooting. My rifle was also incorrectly assembled from the factory, with the hammer spring installed backwards or upside down, depending on how you look at it. It also looks like someone is afraid to finish driving the roll pins when they are assembling these.
I had to drive my trigger guard roll pins deeper because they were still protruding from their holes. A Ruger® flash suppressor is provided and the ½"-28 threaded barrel allows for standard muzzle accessories to be installed. New to Ruger's line of SR-556 rifles, is the new Ruger SR-556 Takedown AR15 rifle. We feel that this new "takedown" rifle may be a unique option for hunters who travel into the back country to hunt game. Weighing in at 7.6 pounds, without optics, this AR15 is a bit on the heavy side.
But, having the ability to break it down and store it in a backpack, or small case for transport, makes this rifle a strong contender for those who like compact and portable. For those looking to hunt big game, while on the move in the back country, this may be a great choice. However, with the suggested retail price at $2049.00, it may be a tough price to swallow for your average hunter. There is also a .300 AAC Blackout barrel kit available to quickly change calibers.
After more dead ends, I spoke to a Ruger N.C. CSR Replacement Specialist who asked me to send her a copy of a letter I'd written and gave me a direct way to communicate with her, and she'd take it to management. A couple of weeks later, she sent an email saying a package is being shipped the next day. Inside was a SR556 TD 5.56 bbl assembly complete with front sight and gas block assemblies!
I feel this was a "one off/unique" situation, but I'll take it. A Ruger® flash suppressor is provided, and the 1/2″-28 threaded barrel allows for standard muzzle accessories to be installed. The chrome-lined gas block and chrome-plated piston and regulator work together to provide a smooth power delivery stroke to the bolt carrier. The by-products of the gas system are vented out the bottom of the gas block, away from the bolt carrier, keeping the action clean and free from contaminants. The end result is significantly improved performance over gas driven rifles. A Ruger® flash suppressor is provided, and the 1/2"-28 threaded barrel allows for standard muzzle accessories to be installed.
A semi-automatic rifle chambered in 5.56×45 mm NATO, the gun utilizes a four-position gas regulator. Both the upper and lower receivers are forged from 7071-T6 aluminum then hardcoat anodized.The 16.1″, cold-hammer-forged, chrome-lined barrel is made of 41V45 chrome-moly-vanadium steel. All components of the operating system are chrome plated for greater wear and corrosion resistance, as well as increased lubricity.
The SR-556 Takedown's barrel, and the optional .300 Blackout barrel, are easily removed and reinstalled. Because each barrel assembly includes a fully-adjustable front sight, barrels can be zeroed independently and, assuming no change to the rear sight, will retain zero between swaps and takedowns. The Ruger SR-556 Take-Down provides multi-caliber shooters a great rifle, that should save the cost of having multiple rifles in different calibers. Familiarity with features, controls, and the Ruger guarantee of return to zero after barrel swaps, should be a great benefit to shooters. The ability to break an AR-15 down also provides a much greater ability for concealed and discreet carry of the rifle between home and car, or car to range. As I mentioned earlier in this article, Ruger designed the front sight to allow for windage and elevation adjustments so that the zero would be maintained when swapping barrels.
I sighted the rifle in with the 5.56mm NATO barrel then swapped out to the 300 BLK barrel. After sighting in the 300 BLK, I then returned to the 5.56mm NATO and shot a new group. Swapping out once again to the 300 Blackout barrel assembly, I found those rounds struck paper right where they were supposed to. I don't claim that this is a comprehensive test, but it is certainly enough to suggest the gun does indeed hold its zero when taken down and then reassembled. The SR-556 Takedown uses a two-stage gas piston with a regulator that the shooter can use to tune the rifle to different ammunition and conditions. The system is designed to keep the gun cooler and cleaner, which should increase reliability with high-volume shooting.
