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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MT6601 | Match Target HBAR | A2 | S-1 | A2 | Yes | Yes | 20 in. | HBAR | 1:7 | Ribbed | No | None |
| MT6601C | Match Target HBAR | A2 | S-1 | A2 | Yes | Yes | 20 in. | HBAR | 1:7 | Ribbed | No | Factory compensator |
| MT6700 | Match Target Competition HBAR | A2 | S-1 | Flattop | Yes | Yes | 20 in. | HBAR | 1:9 | Ribbed | No | None |
| MT6700C | Match Target Competition HBAR | A2 | S-1 | Flattop | Yes | No | 20 in. | HBAR | 1:9 | Ribbed | No | Factory compensator |
| MT6731 | Match Target Competition HBAR II | A2 | S-1 | Flattop | Yes | Yes | 16 in. | HBAR | 1:9 | Short Ribbed | No | None |