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Plenty of AR-15s come out of the box needing upgrades before they feel finished. The Resolute MK4 is CMMG's answer to that, a 5.56 NATO carbine that arrives with the parts most people end up swapping in anyway. The ZEROED drop-in single stage trigger breaks clean, the 60/90 degree ambi safety gives you a shorter throw if you want it, and the ambidextrous charging handle, mag catch, and extended mag release make the rifle just as friendly for lefties as it is for right-handed folks. All of it rides on a forged 7075-T6 lower and billet upper dressed in Coyote Tan Cerakote for a sharp two-tone look against the black furniture.
The 16.1 inch medium taper barrel carries a 1:7 twist, which stabilizes everything from light varmint loads up to 77 grain match ammo, and the muzzle wears CMMG's ZEROED brake on standard 1/2×28 threads if you'd rather run a different device or a suppressor. A mid-length gas system smooths out the recoil impulse compared to carbine-length setups, and at 6.4 pounds with a 32.5 inch overall length, this rifle stays quick on the shoulder whether you're working a carbine course or just burning through a range day.
CMMG's 15 inch EML15 handguard gives you full-length M-LOK real estate on the sides and bottom, plus slots tucked between the top Picatinny sections, so lights, hand stops, and sling mounts go wherever you want them. The 6-position RipStock adjusts fast for different shooters or armor, and since the whole rifle is built on the Mk4 platform, it accepts standard AR-15 parts and accessories if you ever want to tinker.
No sights come installed, so plan on adding an optic or irons, but that's the only thing standing between you and the range. A Magpul 30-round PMAG ships in the box, and the fit and finish CMMG puts into these rifles makes the Resolute a strong pick for a first AR or a well-earned upgrade.
No, this rifle ships without sights. The upper receiver and handguard feature Picatinny rail sections on top, so you can mount a red dot, LPVO, or backup iron sights right out of the box. Budget for an optic when you pick this one up.
The 1:7 twist rate favors heavier bullets, so 62 to 77 grain loads tend to shine, but it stabilizes common 55 grain range ammo just fine. It runs both .223 Rem and 5.56 NATO safely since it's chambered for the higher-pressure 5.56 spec. That flexibility makes it easy to feed whatever your local shop has on the shelf.
Yes. The barrel comes threaded in the standard 1/2×28 pattern with a CMMG ZEROED muzzle brake installed from the factory. Remove the brake and you can attach a direct-thread suppressor or your preferred muzzle-mounted adapter without any gunsmithing.
It's one of the more lefty-friendly ARs in its class. CMMG builds it with an ambidextrous charging handle, ambi 60/90 degree safety, and an ambi mag catch with an extended release button. Left-handed users can run the controls without awkward workarounds or aftermarket parts.
| UPC | 810144722771 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 55A9D0BCT |
| Action | |
| ATF Type | MODERN SPORTING RIFLE |
| Barrel Length | 16.1" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 + 1 |
| Color | BI-TONE |
| Length | 41 |
| Safety | CMMG Zeroed 60/90 Degree |
| Sights | No |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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