FN America FN 15 Military Collector Series M4 Carbine 5.56 NATO, 16.5" Chrome-Lined Barrel
The FN 15 Military Collector Series M4 Carbine brings the look, feel, and build quality of the current U.S. service rifle to the civilian market. Built by FN America, this semi-automatic rifle features a chrome-lined, government-profile barrel that is pinned and welded to an A2 flash hider for a compliant 16.5-inch overall length. Authentic SAFE/SEMI/AUTO selector markings, a UID data plate, and the FN CAGE code on the barrel underscore its collector appeal while maintaining FN’s reputation for duty-grade reliability.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use. There are minor superficial scratches and blemishes present. The rifle was previously spray painted and stripped; faint remnants may be visible in a few small areas.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
What’s Included
- FN 15 Military Collector Series M4 Carbine rifle
- Matech-style folding rear aperture sight (installed)
- Polymer vertical foregrip (installed)
- 1 Magpul PMAG Gen M3 30-round magazine
- 2 aluminum USGI-pattern 30-round magazines
This rifle is part of FN’s Military Collector Series, designed to mirror the U.S. M4 in dimensions, materials, and markings. The upper and lower receivers are forged from 7075-T6 aluminum and finished with a hard-coat anodized black treatment for durability.
The 14.7-inch chrome-lined CMV steel barrel is government profile with a 1:7 RH twist to stabilize a wide range of 5.56mm projectiles. A permanent pin-and-weld A2 flash hider extends the barrel to a legal 16.5 inches while preserving the carbine’s authentic look.
Furniture includes a two-piece, carbine-length ribbed polymer handguard, a 6-position collapsible stock, and an A2 pistol grip. The flat-top upper provides a continuous Picatinny rail for optics or accessories, while the rifle ships with an A2 front sight post and a Matech-style folding rear sight for immediate use.
Additional military-correct touches such as the UID/QR data label, FN CAGE code 3S679, and SAFE/SEMI/AUTO selector engravings enhance its value to collectors seeking an accurate civilian counterpart to the service M4.




