AR-15 Stabilizing Fin Kit

The AR-15 Stabilizing Fin works with any milspec AR-15 / AR-10 milspec buffer tube. Easily adjusts to any position within the buffer tube. Provides additional support while operating your pistol with one hand. The Fin incorporates a vertical fin which you stabilize against your inner forearm or against your cheek for a steady sight picture. Comes with:- The AR-15 Stabilizing Fin- Pistol Buffer Tube - Carbine Buffer Spring- Carbine Buffer- Latch (end) plate and castle nut