Heads up! Not sure how long this has been posted but I went to CCFSC last weekend to sight in my 300 BLK 10.5 rifle at 50 yards and wasn't allowed. Problem is I have it configured with a pistol buffer because I am waiting for my tax stamp to be able to put on a stock and make it an SBR. There is now a sign that states you cannot use a rifle or shotgun with a "pistol only" grip and when I asked, they said it does include pistol buffers. Argh. Just a head up. Good thing I brought my M4 so it wasn't a complete waste of entry fee.