Radical Firearms' RF-15 with a 15-inch M-LOK free-float handguard over the standard 16-inch barrel represents the premium tier of the RF-15 lineup. The free-float handguard eliminates barrel pressure from the handguard, improving accuracy. Radical's in-house barrel manufacturing is retained. The 15-inch handguard provides maximum rail space for accessories while maintaining a manageable overall weight. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2018, USA Weight: 64 oz Overall length: 32.5" Status: Active Intended use: Home Defense, Competition, Target Shooting