The Leupold 2-Piece Base for Custom Gunmakers is ideal for those who are looking for the perfect fit. The durable build and the strong metal used in constructing the piece make for a super-stable installment. The additional stability is part of the reason gun enthusiasts prefer the Leupold name. The base provides for improved alignment that you will not need to adjust on a regular basis. The two-piece construction is uniquely designed to give the best fit on a range of firearms.