FN FN 15 Military Collector M4 Carbine | 5.56 NATO, Knight’s RAS, Radian Raptor-SD, 16-Inch Chrome-Lined Barrel
Built by the same company that supplies the U.S. military, this FN 15 Military Collector Series M4 Carbine delivers an authentic, civilian-legal clone of the service M4A1. It features a 16-inch chrome-lined barrel with the correct M203 relief cut, a genuine Knight’s Armament M4 RAS quad-rail, and factory SAFE/SEMI/AUTO pictograph markings on the receiver. An upgrade to a Radian Raptor-SD ambidextrous charging handle adds suppressor-optimized functionality without altering the rifle’s original appearance.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use. Minimal markings from previous handling and use.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – Sharp lands and grooves.
What’s Included
- Knight’s Armament vertical foregrip (installed)
- Radian Raptor-SD ambidextrous charging handle (installed)
- 3 × 30-round Magpul PMAGs
- 2 × 40-round Magpul PMAGs
- 1 × Magpul D-60 60-round drum magazine
The rifle is manufactured on 7075-T6 forged aluminum upper and lower receivers finished with a hard-coat anodized black surface. A military-style UID label and part number 36318 reinforce its collector appeal while retaining the semi-automatic operating mechanism.
FN’s chrome-lined, MP/HP-tested barrel is built to service standards for durability and heat tolerance. The 1:7 right-hand twist stabilizes a full range of 5.56 NATO projectile weights, and the threaded muzzle is ready for standard flash hiders or suppressor mounts.
The Knight’s Armament M4 RAS quad-rail provides proven rigidity and allows the included vertical foregrip, lights, lasers, or other 1913-compatible accessories to be installed without tools. An F-height A2 front sight post is pinned in place; users can choose their preferred rear sight or optic on the flat-top receiver rail.
Controls are upgraded for ambidextrous use: the factory ambi selector pairs with the Raptor-SD charging handle to support left- or right-handed operation, even when wearing gloves or running suppressed. A six-position collapsible stock and A2 pistol grip complete the familiar M4 ergonomics.