The Faxon ARAK-21 XRS features a Magpul SL Stock; Magpul MOE Grip; ambidextrous safety/selector; ambidextrous charging handle; self-contained firing pin retention system; full length picatinny rail on the top and three additional rails on the muzzle end of the receiver, making it a full M4 style quad rail upper. Includes magazine and BAU removal tools.
| Safety | Ambidextrous Safety Lever |
| Stock Description | Magpul SL |
| FireArm | yes |
| Weight | 5.50 lbs |
| Weight Range | 5 lbs to 5.99 lbs |
| Barrel Description | Match Grade Threaded |
| Hand | Ambidextrous |
| Sights | None |
| Stock Finish Group | Black |
| Metal Finish Group | Blued/Black |
| Barrel Length | 16" |
| Receiver Material | Aluminum |
| Barrel Length Range | 16" to 16.99" |
| Capacity | 30+1 |
| Caliber | 223 Rem/5.56 NATO |
| Trigger | Radian Vertex |
