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
First Look: Gritr Multi-Caliber Cleaning Kits
Engineered to replace multiple kits with one streamlined solution, new Gritr Gear multi-caliber gun cleaning kits promise to make firearm maintenance easier, faster and safer.
More than $1.2 Billion on the Way to Support Conservation and Access
On Feb. 13 the U.S. Fish and Wildlife Service (USFWS) announced more than $1.2 billion in Wildlife and Sport Fish Restoration apportionments to support states, commonwealths and territories in their efforts to fund conservation and outdoor opportunities.
A Question of Quarterbores
With the release of the .25 Weatherby RPM, it's worth taking a step back and looking at some of the best quarterbores that graced chambers and fields throughout history. How will this new release measure up to its forefathers?
New for 2026: Avian-X Shotgun Cases
Building off of decades of innovation in the waterfowl-hunting industry, Avian-X is entering the soft-goods space in 2026 with a purpose-built lineup of waterproof and floating shotgun cases and neoprene gun sleeves designed to deliver in harsh hunting conditions.
Story of a Lever Gun—The Red Plaid Project Part 2
Andi Bogard continues her quest to build, test and hunt with a classic lever gun in a classic way. Check out the second installment of the project here.
Coyote Gear Roundup
Looking for gear to up your Coyote game? We've curated a great list of the latest and greatest.
Interests
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
