Dependable, super-capacity drum magazine lets you shoot 50-round strings of .22 LR ammunition in your 10/22® for plenty of plinking fun. No modifications to rifle needed; simply snaps into the mag well like the standard factory magazine. Tough, impact-resistant polycarbonate body and follower are self-lubricating, so they work with the constant-force spring to deliver smooth, uniform feeding for consistent operation. Smoke-tinted translucent body enables easy visual checks of ammo status. Steel hex screws anchored into brass bushings securely hold the body together to ensure exceptional strength and rigidity, yet are easily removed for disassembly and cleaning.