This pistol features the all-new Harrington & Richardson "HAR-15" Adjustable Pistol Brace. This brace keeps you compliant while maintaining the classic aesthetic. The HAR-15 Pistol Stabilizing Brace is injection-molded polymer, adjustable, and includes a QD attachment point. FeaturesSpecial Forces COTS M16A2 Lower6-Position Carbine-Length Buffer TubeM4 Barrel ExtensionTIA Flash Hider Muzzle Device