AR-15 variants MT and CR series models MT and CR series models

| Colt_model_no_ | Name_ | Stock | Fire_control | Rear_sight | Forward_assist | Case_deflector | Barrel_length | Barrel_profile | Barrel_twist | Hand_guards | Bayonet_Lug | Muzzle_device |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CR6724 | Colt Accurized Rifle | A2 | S-1 | Flattop | Yes | Yes | 24 in. | Stainless HBAR | 1:9 | FF Tube | No | None |
| MT6400 | Match Target M4 | 4th Generation | S-1 | Flattop | Yes | Yes | 16 in. | M4 | 1:7 | M4 | No | None |
| MT6400C | Match Target M4 | 4th Generation | S-1 | Flattop | Yes | Yes | 16 in. | M4 | 1:7 | M4 | No | Factory compensator |
| MT6530 | Match Target Lightweight | A2 | S-1 | A2 | Yes | Yes | 16 in. | A1 | 1:7 | Short Ribbed | No | None |
| MT6551 | Match Target Rifle | A2 | S-1 | A2 | Yes | Yes | 20 in. | A2 | 1:7 | Ribbed | No | None |