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
Gun of the Week: TriStar Arms KR.22
Semi-automatic .22 rifles have been a staple in the firearm marketplace for decades, and the TriStar Arms KR.22 brings yet another lightweight, affordable option that accepts Ruger 10/22 rotary magazines.
Political Report | Trump Reiterates National Right-to-Carry Support
I am repeatedly reminded of how critical it was that the NRA engaged early in supporting Donald Trump’s 2016 candidacy—and that he won. A recent example came in June, when President Trump spoke to American workers at a Mack Trucks facility in Macungie, Pa.
The Armed Citizen® Aug. 21, 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.
The Norinco TU-33/40: A Rimfire Mauser Lookalike from China
The Norinco TU-33/40 is, at a glance, a copy of a Mauser 98k with a few choice details that give away the fact that it’s not a big-bore World War II workhorse.
AI Tools Enter the Used-Gun Market
Companies that deal in the used-gun market are not shy about sharing the advantages their AI-driven tools and services.
Standing Guard | Standing on the Line for Freedom
This past August marks 46 years since I raised my right hand and was commissioned as an infantry officer in the United States Marine Corps. In the summer of 1980, I entered active duty with a firm sense of civic duty and a deep desire to serve our great nation. Like so many who wear the uniform, I was ready to contribute directly to the defense of freedom.
Interests
Federal Ammunition Awarded Contracts to Provide Rifle and Shotgun Ammunition to the Canadian Government | An Official Journal Of The NRA
- New for 2026: KJI K950 Tripod and Titan Inverted Ball Head | An Official Journal Of The NRA
- Federal Ammunition Awarded Contracts to Provide Rifle and Shotgun Ammunition to the Canadian Government | An Official Journal Of The NRA
- Buckmasters’ New Record Book Reveals Hot Spots, Revamped Rankings | An Official Journal Of The NRA
SECTIONS
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
