| Brand | Sig Sauer |
| Category | Tactical Rifles |
| Series | Spear LT |
| Model | MCX |
| Caliber | 5.56 NATO |
| Barrel Length Range | 16" to 16.99" |
| Operating System | Gas Piston |
| Stock Finish Group | Black |
| Capacity | 10+1 |
| Action | Semi-Auto |
| OAL | 32.50"-34.30" |
| Hand | Ambidextrous |
| Barrel Finish | Black |
| Barrel Material | Cold Hammer Forged Steel |
| Muzzle | Rocksett SIG QD Flash Hider |
| Twist | 1:7" |
| Receiver Description | Picatinny Rail |
| Magazine Type | AR-15 |
| Grips | AR Compatible Reduced Angle |
| Handguards | M-LOK |
| Height | 7.80" |
| Receiver Material | Alloy |
| Thread Pattern | 1 / 2"x28 |
| Width | 2.80" |
| Stock Description | Minimalist Plus Folding |
| Barrel Description | Threaded |
| Barrel Length | 16" |
| Max Capacity | 10 |
| Receiver Finish | Black Anodized |
| Trigger | Two-Stage Matchlite Duo |
| Weight | 7.40 lb |
mass compliant with fin grip
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