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
Numerous Companies Offering Firearm, Ammo Rebates This Fall
Now that summer 2025 is drawing to a close, we'd like to welcome in the rebate season, and this year's specials are hard to ignore!
Preview: North American Arms Sentinel
The Sentinel from North American Arms combines the aesthetic and .22 WMR chambering of the Pug with the Sidewinder’s frame-mounted swing-out cylinder (to the right side, mind you) and far simpler reloading process.
New For 2025: Chiappa Big Badger
Chiappa's Little Badger has long been a popular, affordable, break-action survival rifle chambered for the .22 Long Rifle cartridge. Now, the design has been upsized into the Big Badger, available in several centerfire chamberings.
Preview: Self Reliance Outfitters Pathfinder Canteen Trail Kit
The U.S.G.I. canteen and cup are classic pieces of kit due to their efficient design and durable construction, and they are practically updated in the Self Reliance Outfitters Pathfinder Canteen Trail Kit.
Gun Of The Week: Browning X-Bolt 2 Speed SPR
On this episode, we’re taking a closer look at the latest version of one of the most popular bolt-action rifle platforms out there. This is the Browning X-Bolt 2 Speed SPR.
The Armed Citizen® Aug. 29, 2025
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
