Enables the addition of an aftermarket arm brace or other pistol buffer tube accessory
Adapter is made of 6061 T6 aluminum, flat black anodized
Buffer tube made by KAK industries specifically for fitment of an aftermarket arm brace threads on adapter (1-3/16x16) are standard to accept all ar-15 buffer tubes/receiver extensions
If using a buffer tube other than the supplied KAK industries tube there are two threaded alignment holes (10x32 thread) for tubes that use a notch for indexing. A 3/16 or 1/4 half dog socket set screw would be used for proper indexing.
*** 3/16, 1/4 half dog socket set screws not included ***