Among the myriad introductions at SHOT Show 2019 was a straight-wall rifle cartridge dubbed 350 Legend. The leading company behind the charge is Winchester, but it wasn’t until a day later that CMMG Inc., announced not only a rifle, but a series of direct-impingement semi-automatics compatible for use with this newly designed cartridge. At the top tier of the series, the Resolute 300 MK4 boasts forged aluminum receivers featuring Cerakote finishes and components AR builders know the company for. To learn more, watch our NRA Gun of the Week video hosted by American Rifleman’s Kelly Young.
Specifications:
Manufacturer: CMMG Inc.
Model: Resolute 300 MK4
Action Type: gas-operated, semi-automatic center-fire rifle
Chambering: 350 Legend
Receivers: forged aluminum, Cerakote Sniper Grey finish
Barrel: 16.1”, chrome-moly steel
Stock: CMMG RipStock; five-position adjustable
Magazine: 10-round detachable box
Sights: none; Picatinny rail
Trigger: two-stage; 4-lb., 8-oz. pull
Weight: 6 lbs., 5 ozs.
MSRP: $1,550
Additional Reading:
SHOT Show 2019: Winchester 350 Legend Ammunition
Tested: CMMG Guard Pistol Caliber Carbines
SHOT Show 2019: CMMG Resolute Carbines in 350 Legend
Tested: CMMG MK4 Banshee .22 LR Pistol
Top 5 Reasons to Shop for ARs Right Now
NRA Gun of the Week: CMMG Resolute 300 MK4 Rifle
More like this from around the NRA
Latest
Review: EAA Balikli BLK
EAA’s new Balikli BLK bolt-action rifle is a Model 700-inspired rifle that’s feature-laden and affordable.
Big Iron: The Smith & Wesson Model 1917 Classic & Model 22 Classic
Smith & Wesson is resurrecting and updating two of its classic .45 caliber revolvers, with the Model 1917 Classic and Model 22 Classic.
The Armed Citizen® Nov. 2, 2026
Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.
2nd Amendment Freedom is on the Ballot
This midterm election on November 3 will soon be behind us. We could see, come January 2027, a Congress that respects our Second Amendment freedom, or the American electorate could vote in the opposite.
Suppressor Demand Outpaces Production
The demand for suppressors is setting new records. National Firearm Act (NFA) item purchases in September—primarily suppressors—more than doubled compared to the same month in 2025.
Book Review | Five Decades of a Fabulous Firearm: Celebrating the 50th Anniversary of the Beretta 92 Pistol Series
In this wide-ranging book, you’ll find a history of Beretta, discussion of developments leading to the Model 1951/951 Brigadier, its evolution into the Model 92 and the U.S. military’s adoption of the platform (as the M9) in 1985.
Interests
SECTIONS
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
