New Frontier Blowback Buffer Spacer - For Pistol Calibers

New Frontier Blowback Buffer Spacer - For Pistol Calibers

This spacer allows you to use a standard carbine buffer in your 9mm AR15 build. AR9 Bolt Carrier groups are shorter than standard 5.56 BCG's. This 9mm spacer allows you to use a standard carbine or heavy buffer with your Colt or Glock style 9mm BCG.