FN America FN 15 DMR3 5.56 NATO, 18 in Cold Hammer-Forged Chrome-Lined Barrel, Tungsten Gray, Free-Float M-LOK
The FN 15 DMR3 stands out with an 18 in cold hammer-forged, chrome-lined barrel made from FN proprietary 21CrMoV5-11 steel, a rifle-length gas system with a pinned low-profile gas block, and a free-float M-LOK handguard built on Hodge Defense wedge-lock architecture. This Tungsten Gray configuration includes a continuous T-marked top Picatinny rail, a multi-port muzzle brake, and forged aluminum receivers, delivering a refined, purpose-built AR-15 pattern rifle in 5.56mm NATO.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows minimal markings from previous handling and use. See photos for close-ups.
What's Included
- FN factory box with end label (SKU 36-100683)
- Owner's manual
- 1x 30-round FN-branded polymer AR-pattern magazine
The 18 in barrel is marked HF MP 5.56 NATO 1/8 and features a 1:8 twist to stabilize a broad range of 5.56 projectiles. It is cold hammer-forged and chrome-lined for durability and consistency, and it is threaded with a multi-port brake/compensator installed from the factory.
FN pairs a rifle-length gas system with a pinned, low-profile gas block to promote smooth operation. The free-float M-LOK handguard uses Hodge Defense wedge-lock architecture and aligns with the receiver to provide a continuous, T-marked Picatinny rail across the top.
Forged aluminum receivers wear a Tungsten Gray Cerakote finish. The upper includes a forward assist, shell deflector, and ejection port cover. This configuration ships without iron sights.
The stock is a 6-position collapsible polymer unit with a QD sling socket and rubber buttpad, complemented by an FN-marked polymer pistol grip. Length of pull is 14.0 in, overall length runs approximately 36.2 in extended and 33.0 in collapsed, and unloaded weight is about 8.2 lb.
Chambered in 5.56mm NATO, the FN 15 DMR3 uses a direct impingement action with a manual safety and a 30+1 capacity. It is an American-made rifle identified by FN part number/SKU 36-100683 in this Tungsten Gray configuration.