• Mil-spec diameter carbine receiver-extension tube — hard-coat anodized aluminum
  • 9mm-specific carbine recoil buffer
  • Carbine-length recoil spring
  • Steel receiver end plate
  • Steel castle nut

Full details and secure checkout: https://3crtactical.com/luth-ar-9mm-ar-9-carbine-buffer-assembly-367538/?utm_source=armslist&utm_medium=referral&utm_campaign=listing