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
Hardware Review: Thompson/Center Encore ProHunter
Check out our review of the T/C Encore ProHunter, a new version of the legendary switch-barrel muzzleloader from Thompson/Center.
New for 2026: WRC Golden Estrus Scent Stick Formula
Wildlife Research Center has released its Golden Estrus Scent Stick Formula, a weather-resistant, long-lasting estrus scent designed to trigger the mating instincts of rutting bucks.
Screwworm Gains Toehold the United States
The New World Screwworm (NWS), which devastated wildlife populations and the Lone Star State’s livestock industry 60 year ago, has established two beachheads in Texas.
Field Shooting Positions & Real-World Hunting
Delivering a lethal shot with a rifle or handgun when afield requires an understanding of the various shooting positions, supports and realistic accuracy. This article is meant to serve as a primer.
New for 2026: Texas Hunter Products 300-lb. Cottonseed Feeder
Texas Hunter Products has released its 300‑lb. Cottonseed Feeder, a purpose‑built solution for land managers who rely on whole cottonseed to support healthy deer and wildlife year‑round.
#SundayGunday: Stoeger M3000 Freedom Series Tactical
On this week's #SundayGunday, we’re checking out the Stoeger M3000 Freedom Series Tactical shotgun. Based around an Inertia Driven system, this three-inch chambered shotgun can run a gamut of shotshells, from lightweight target loads to heavy turkey magnums. Learn more about it in this exclusive video.
Interests
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
