Satern Single Shot Magazine Follower AR-15 Polymer

This Delrin adapter replaces the factory follower in an AR-15 magazine, effectively converting it to fire single shots only, and locking the bolt open after each. It is the perfect accessory for competitors or long range target shooters who use the long, heavy, VLD projectiles that are not compatible with regular AR-15 magazines due to their excessive overall length when loaded. The adapter correctly lines cartridges up with the chamber for smooth feeding and is legal for use in most national competitive events.