The Acme Tackle Company CMM MK4 RCE AR-15 rifle is built around a 16.1 inch 4140 chrome-moly medium taper barrel finished in salt bath nitride, paired with a 1:7 twist rate for versatile 5.56 performance. A forged 7075-T6 aluminum M4-type upper and AR-15 type lower provide a durable foundation, while the RKM14 KeyMod handguard and flat dark earth styling keep the build clean and functional. For confident control, the rifle is equipped with a Geissele SSA 2-stage trigger and a 6-position mil-spec receiver extension with a black CTR buttstock and Magpul MOE grip and trigger guard.
Key Features
16.1 inch 4140 chrome-moly medium taper barrel with salt bath nitride finish
1:7 twist rate for stable performance across common 5.56 loads
Geissele SSA 2-stage trigger for crisp, consistent pulls
RKM14 KeyMod handguard with M4-type forged upper for a classic AR-15 build
6-position mil-spec receiver extension with CTR buttstock
Flat dark earth receiver and handguard with black stock and pistol grip
A well-specified AR-15 build in 5.56 NATO with a nitride-finished barrel and a proven 2-stage trigger for dependable range use.
