The A300 Ultima Patrol utilizes a semiautomatic gas-operated action with a compensating exhaust valve, self-cleaning piston, and a chrome-lined barrel. The short, 19 1/2" barrel gives it a compact size and makes it ideal as a tactical shotgun for engaging targets while in confined spaces. it features a large textured bolt release, an oversized charging handle, and a hefty safety button that can be switched from side to side. The checkering around the grip and fore-end ensures the operator will have a consistent grip on the weapon, even when wearing gloves. The Chisel model features a custom modular tactical pistol grip stock developed by Chisel Machining. The stock allows for easy cheekweld adjustment while allowing users to quickly mount an RMR with an integrated mount. The stock assembly also features an AR-style pistol grip interface giving users access to a wide variety aftermarket support to fit their preferences. This model is chambered in 12 gauge and features a 3-inch chamber and a fixed choke (IC). The magazine tube sports a 5-round capacity.