The Designated Marksman Rifle variant of the FN 15 platform featuring an 18-inch stainless steel match-grade barrel, free-float M-LOK handguard, and factory Geissele SSA two-stage trigger. FN's highest-specification AR-15 variant. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 20 Year introduced: 2018, USA Weight: 131.04 oz Overall length: 38.5" Status: Active Intended use: Precision, Competition, Duty