Mil-spec Rifle Length Receiver Extension / Buffer Kit. Fits standard A1, A2 and other fixed stocks. For 5.56/.223 AR-15’s only.
Includes: Rifle Length Receiver Extension / Buffer Tube, 12 3/4″ Mil-Spec Buffer Spring and AR-15/M16 Rifle Buffer
Total Weight: 11.9 oz.
Weight of Buffer: 5.4 oz.
Length of Buffer: 6″
Length of spring 12 3/4″
Note: This is not for adjustable / telescoping / collapsible stocks.