The FN 15 Military Collector Series M4 brings to market a military replica rifle made to FNs, and the U.S. military's exacting specifications. The semi-automatic rifle features a 16", 1:7 RH, button-broached and chrome-lined barrel; collapsible, 6 position stock with sling mount; Knights Armament M4RAS Adapter rail with rail adapter covers; UID-labeled lower receiver is equipped with an ambidextrous selector switch.
| FireArm | yes |
| Safety | Ambidextrous |
| Action | Semi-Auto |
| Weight Range | 6 lbs to 6.99 lbs |
| Metal Finish | Black |
| Hand | Ambidextrous |
| Stock Description | Adjustable |
| Stock Finish Group | Black |
| Metal Finish Group | Blued/Black |
| Caliber | 5.56x45mm NATO |
| Barrel Length | 16" |
| Weight | 6.60 lbs |
| Receiver Material | Aluminum |
| Twist | 1:7" |
| Barrel Length Range | 16" to 16.99" |
| OAL | 30.50"- 34.20" |
| Capacity | 30+1 |
| Muzzle | A2 Compensator |
| Sights | A2 Front/Adj Rear |
| Barrel Description | Button Broached |
