BUL complete magazines are pre-assembled for USPSA, IDPA, and Carry Optics shooters running BUL pistols and compatible 2011-style platforms. Each magazine arrives with the spring, follower, and base pad installed and ready to load. Options include BUL magazines in 9mm and other competition calibers, in extended capacities that meet division length limits, built for consistent feeding, solid lock-up, and quick reloads, with fitment by pistol model to confirm. Fast same-day shipping on most orders at Shooters Connection.