The Gear Head Works Tailhook Mod 1 for the AR-15 Pistol Stabilizing Brace Kit comes with everything you need. This kit includes the Mod 1 Tailhook, castle nut and endplate, 9" tube, as well as the spring and buffer! One of the the most compact pistol brace systems out there!
Note: Prior to warranty return, please contact Gear Head Works for assistance with any issues regarding this product.