The BT46-NC PSR (Precision Sniper Rifle) Atlas Bipod "No Clamp" model has a two hole pattern of 1.100" with the holes being 10/32 threads. It requires any 17S size lever style mount to include the ADM-170-S, ARMS 17S, TRAMP from Badger Ordnance, LT271 or any ARCA dovetail mount with the same hole pattern. The BT46-NC will also mount directly to our BT19 AI Spigot or BT70 M-LOKA(R) Adapter. It is comprised of 6061-T6 aluminum, except the strengthened inner legs which are made from 7075-T6 aluminum that are Mil-Spec Type III hard coat anodized and have heat treated, stainless steel components. Includes two 10-32 x 3/8" flathead socket screws. Available in black only. The PSR series of Atlas Bipods were developed for the SOCOM PSR (Precision Sniper Rifle) Weapons System (BT46-LW17 was selected for SOCOM PSR). Height Range: 5 - 9.4" (6.5" at 90Adeg) Preloaded Pan: 30 degrees Preloaded Cant: 30 degrees Position Button 0.5" diameter Fore and Aft pivot limiting Bosses 5 leg positions: 0, 45, 90, 135 & 180 degrees Non-Rotating Legs: outer leg does not rotate around inner leg Larger, stronger inner legs Weight: 11.42 ounces approx. Footprint: 8-11"