The new BT15 3.35" 1913 Rail will accommodate hole patterns with a center to center spacing of 1.76 – 2.78" with a relieved base to accommodate curved surfaces. A standard sling stud and Sling Stud
Due to customers requests we will offer as a set a BT20B and the American Defense AD-170-S lever as an assembly. The BT43 will provide the means to add the quick release feature provided by the ADM le