The updated 3-Gun model under Stag's Model 15 product line designation. Updated with an M-LOK free-float handguard, enhanced two-stage trigger, and 18-inch stainless barrel. The model name change from 8 to 15 aligned Stag's naming convention with the "AR-15" designation. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2015, United States Weight: 104 oz Overall length: 36.5" Status: Active Intended use: Competition, Recreational Shooting