The Bushmaster Adaptive Tactical EX Performance is a factory collaboration with Adaptive Tactical, featuring their Venom stock system — a rifle stock with an integrated adjustable length of pull and cheek riser — on a standard 16-inch Bushmaster carbine. The Venom stock provides precision-rifle ergonomics on an AR-15 platform, adjusting to accommodate shooters of different sizes and shooting positions. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2013, USA Weight: 7 oz Overall length: 33" Status: Discontinued Intended use: Sport Shooting, Precision Shooting