For 2019, Ruger has introduced a new model of its popular AR-556 MPR chambered for the straight-walled .450 Bushmaster cartridge. The bolt is machined from high-strength superalloy, which Ruger says is more than 50 percent stronger than traditional MSR bolt materials, and engineered with tapered lugs to support the large case head of .450 Bushmaster ammo. Additional features include a 18.63-inch cold hammer-forged 4140 chrome-moly steel barrel with ultra-precise 5R rifling and a black nitrided finish provides exceptional accuracy, longevity and easy cleaning. The lower receiver is fitted with a Magpul MOE grip and MOE SL collapsible buttstock on the Mil-Spec buffer tube. Ruger's 15-inch free-float handguard is designed to be light, stiff and versatile, and Magpul M-LOK accessory attachment slots sit at the 3:00, 6:00 and 9:00 positions. MSRP: $1,099; ruger.com.
Video: Ruger AR-556 MPR in .450 Bushmaster
More like this from around the NRA
Latest
Field Tested: BOSS Copper Shotshells
With bismuth and tungsten now being in short supply and extra-expensive, BOSS Shotshells switched to copper pellets for its waterfowl loads. What can you expect performance-wise from this new shot type? Read on.
Savings Aimed at Waterfowlers
Some of the industry’s finest are offering special promotions on shotshells designed for waterfowl season. Opening day arrives in a few short weeks, which makes the timing of these rebates ideal for hunters whose ammo inventory is a little light.
#SundayGunday: Real Avid Ratchet Rests
On this week's #SundayGunday, we’re checking out the Ratchet Rest adjustable-height shooting bags, from Real Avid. Available in three sizes, purchasable separately or together, Ratchet Rests are built to provide front and rear support for a rifle with easy elevation control, thanks to a unique ratcheting system. Learn more about it in this exclusive video.
Colorado Right to Hunt Amendment Makes the November Ballot
Colorado voters will decide this November whether there should be a constitutional right to hunt and fish in the state constitution. Initiative 302, officially titled the Constitutional Right to Hunt and Fish, cleared its final procedural hurdle on August 20, 2026, when the Colorado Secretary of State’s Elections Division certified that proponents had gathered enough valid signatures.
In Memoriam: Randy Brooks: 1949-2026
Randy Brooks, creator of the famous Barnes X Bullet and the 2016 NRA Golden Bullseye Pioneer Award winner, passed away peacefully on the morning of Aug. 27, 2026. He was 77.
Focus on the Conservation’s Future—Groundbreaking Lessons in Arkansas
True outdoor curriculum is being offered to thousands of students in Arkansas, thanks to rededicated efforts under the Arkansas Game and Fish Commission’s (AGFC) outdoor education partnership with the Arkansas Governor’s Office and Arkansas Department of Education.
Interests
Head to Head: The 9.3x62 vs. 9.3x74R | An Official Journal Of The NRA
- Remington Adds Three Subsonic Rifle Loads for Suppressor Use | An NRA Shooting Sports Journal
- Winchester Super Match: New Competition Ammunition for Pistol, Rifle and Shotgun | An NRA Shooting Sports Journal
- Going the Distance: Winchester's New Supreme Long Range Ammunition | An Official Journal Of The NRA
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
