FN FN15 DMR3 5.56x45mm 18in 30+1 Tungsten Gray

About this product

The FN FN15 DMR3 is a purpose-built precision AR-style rifle configured for accurate, repeatable performance at extended ranges. It combines an 18-inch hammer-forged, chrome-lined hybrid barrel with a rifle-length gas system and a two-stage Geissele trigger to support controlled, consistent shot-to-shot recovery. The platform includes a free-floated Hodge Defense handguard, pinned low-profile gas block, M16-style bolt carrier group, and a SureFire ProComp muzzle device to manage recoil impulse and muzzle rise.

Key Specifications

• The rifle is chambered in .223 Rem / 5.56x45mm NATO.
• The barrel measures 18 inches and uses FN’s hybrid profile, chrome-lined construction.
• The barrel twist is 1:8 RH.
• The action is semi-automatic (direct impingement).
• The standard magazine capacity is 30 + 1 rounds.
• The trigger is a Geissele two-stage G2S style.
• The muzzle device is a SureFire ProComp muzzle brake.
• The handguard is a 14.6-inch Hodge Defense free-float wedge-lock with M-LOK slots and a continuous top rail.
• The unloaded weight is approximately 7.4 pounds.
• The overall length measures 35.2 to 38.5 inches depending on stock position.

Designed for disciplined precision and high-volume range use, the FN15 DMR3 pairs durable FN barrel metallurgy and MIL‑SPEC bolt components with a refined trigger and accessory-ready handguard. Its combination of an 18-inch hybrid barrel, reliable operating system, and thoughtful component set makes it well suited to precision practice, competition-style training, or course-of-fire work where consistent performance and controllability matter.