FN America FN15 DMR3 5.56 NATO 18" - AR-15 Rifle

The FN America FN15 DMR3 5.56 NATO 18" is built for people who can't afford a malfunction. Engineered in 5.56 NATO to the same standards demanded by military and law enforcement users who stake their lives on their equipment.

The FN America FN15 DMR3 5.56 NATO 18" brings 5.56 NATO capability to a semi-automatic AR-15 rifle, using a rifle-length direct impingement operating system designed for dependable function in any condition.

Built Beyond Mil-Spec: Mil-spec is the minimum acceptable standard; this 5.56 NATO AR-15 rifle exceeds it throughout. Components are selected for the tightest tolerances and best available materials, not the lowest cost.

Consistent Performance Under Pressure: Reliability when conditions are bad, ammunition is dirty, and the rifle is hot is what separates professional-grade platforms from recreational ones. This rifle delivers that consistency.

Match-Accurate Architecture: Cold hammer forged or precision button-rifled barrels, hand-fitted components, and proper headspace ensure accuracy that outlasts most optics mounted on it.

Professional Pedigree: The same manufacturing standards that supply military and law enforcement contracts go into every 5.56 NATO rifle that comes off this line — civilian availability, professional build quality.

• Caliber: 5.56 NATO
• Barrel Length: 18"
• Barrel Twist: 1:8"
• Gas System: Rifle-Length Direct Impingement
• Handguard: Free-Float
• Muzzle Threading: 1/2x28
• Magazine Capacity: 30-Round
• Finish: Anodized
• Origin: Made in the USA

Drop-in compatible with mil-spec AR-15 lower receivers. Takes standard STANAG magazines chambered in 5.56 NATO and works with the full range of AR-15 accessories and aftermarket upgrades.

Machined from 7075 aluminum and coated with Anodized, the receiver set offers durable protection against wear and environmental exposure while maintaining precise fit between components.

Designed for users who demand mil-spec reliability and match-grade accuracy in the same package — professional duty, competition, and advanced training all fall within this platform's wheelhouse.

FN America has supplied the M4A1 carbine to the U.S. Military since 2013. That same manufacturing standard carries directly into their commercial AR-15 lineup. Made in the USA.