Here is an original vintage Atchison conversion kit. Vietnam War era converts your 5.56mm/.223 to .22 long rifle (.22lr) caliber for plinking, training, etc. Saves money on expensive ammo. This vintage kit is in excellent condition. Looks to have been hardly used. Includes items pictured (conversion insert, magazine) in original plastic case that snaps up tight to keep everything together.

These are becoming rarer. Here's your chance to have a great collectible that's also useful.