CZ Magazine 12005 fits 455, 457 - Single Shot AdaptorSingle Shot Magazine fits 455, 457, 453, 452, and 512 model CZ Rimfire Rifles. For use with 22 LR and 17 HM2 ammo. This magazine provides a bed for loading cartridges one at a time.

Original Bob Sled AI-308 Single Shot Loading Mag - The AI-308 Bob Sled provides a single shot loading bed or follower to allow the easy loading and firing of single rounds during competition, benchrest , or varmint shooting. Made from durable, long...