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
by
Support NRA American Rifleman
DONATE
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
More like this from around the NRA
Latest
Review: Heckler & Koch VP9CC
HK’s new VP9CC offers VP9 features in a micro-size pistol.
Former Barnes Bullets CEO Randy Brooks Passes Away
Randy Brooks, former president and CEO of Barnes Bullets, passed away on Aug. 27 peacefully in his Mona, Utah, home.
NRA-ILA Names Patriot Mobile Official Partner of the 2026 NRA Gun Bus Battleground Tour
America’s only Christian conservative wireless provider, Patriot Mobile, will keep the tour connected as the NRA-ILA team takes the Second Amendment fight on the road.
New Suppressors for 2026: A Full Guide
With the removal of the $200 NFA tax stamp on suppressors, the only sound reverberating across the firearms landscape is “cha-ching.”
MDT Now Offering Lone Peak Arms Rifle Actions
Earlier in 2026, MDT announced that it had acquired Lone Peak Arms, and now, the company's rifle actions are available to consumers.
The Armed Citizen® Aug. 31, 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.
Interests
SECTIONS
IN THE SPOTLIGHT
EXPLORE MORE NRA PUBLICATIONS
