- Heavy taper profile stainless steel barrel
- 5/8"-24 threaded CMMG SV Muzzle Brake
- CMMG RKM15 Handguard
- Billet 7075-T6 AL LR308 Receiver
The Mk3 P Upper Group features an 24″ 416 stainless steel, heavy taper profile. This Upper Group is equipped with CMMG’s SV muzzle brake and RKM15 KeyMod hand guard.