This build utilizes Angstead Arms AR9mm receiver set which uses standard Glock magazines and has the last round bolt lock back feature. We've installed the Rise Armament Blitz trigger adding a clean crisp trigger pull every time, with the added anti walk trigger pins gaurantees the trigger will never go loose on you. The black nitride bolt carrier group pairs with an active buffer system and custom buffer spring creates a smooth movment of the entire buffer system. The Ballistic Advantage 5.5" barrel is shrouded in a 7" Combat M-Lok handguard and capped off with a Kaw Valley Slim Linear Compensator. The Gradus Ergo grip from FAB Defense gives one of the most comfortable pistol grips on the market. The 15 degree reduced angle on the grip creates one of the most comfortable and precises shooting grips achievable. This entire build is fine tuned and tested by our gunsmith ensuring precision and smooth operation. This entire build is finished off with a custom Tungsten Cerakote coating. All Core Elite Ops custom builds come with our life time warrantly.