The MCX-Regulator- using the heart and soul of the legendary MCX platform combined with a proprietary lower design, all built around shooter ergonomics. Featuring an aluminum frame; Magpul SGA Mossberg 500/590 traditional stock; lower receiver compatible with all MCX upper receivers; receiver finish in Reduced Weapons Visual-IR Signature GEN II NiR FDE Cerakote; fully ambidextrous magazine release, safety selector and bolt catch; two-stage match trigger; cold hammer-forged carbon steel barrel; SIG-designed muzzle brake and a built in ARCA Rail for easy tripod mounting. Includes 10rd polymer magazine.
| Category | Tactical Rifles |
| Series | Regulator |
| Model | MCX |
| Caliber | 223 Rem / 5.56 NATO |
| Barrel Length Range | 16" to 16.99" |
| Gun Platform | AR-15 Style |
| Operating System | Gas Piston |
| Stock Finish Group | Brown |
| Capacity | 10+1 |
| Stock Material | Synthetic |
| Action | Semi-Auto |
| OAL | 39.10" |
| Hand | Ambidextrous |
| Sights | None |
| Barrel Finish | Black Nitride |
| Barrel Material | Carbon Steel |
| Muzzle | Sig 2-Port Muzzle Brake |
| Twist | 1:7" |
| Receiver Description | ARCA / Picatinny Rail |
| Receiver Material | Aluminum |
| Safety | ARCA / M-LOK |
| Stock Description | Magpul SGA 590 |
| Barrel Description | Muzzle Brake |
| Barrel Length | 16" |
| Max Capacity | 10 |
| Receiver Finish | GEN II NiR FDE Cerakote |
| Trigger | Two-Stage Match |
| Weight | 8 lbs |
| Stock Finish | Flat Dark Earth |
| Handguard Finish | Flat Dark Earth |
