Construct a custom base using steel or aluminum with pre-cut slots to expedite the process. The scope base stock is precisely machined to MIL-STD-1913 picatinny specifications, enabling the creation of custom optic bases for rifles or handguns. The inclusion of pre-cut cross-slots accelerates the assembly process and accommodates any picatinny scope rings. This solution is ideal for efficiently constructing a versatile base for firearms with non-standard hole spacing, eliminating the need to drill new holes in the receiver. The bases are available in pre-hardened steel or aluminum, both featuring a matte black finish. The underside of the base is flat, allowing it to be radius cut to conform to any receiver contour. Machined from a solid block of 7075 aluminum, this picatinny rail offers a blank design, ensuring durability and precision for various mounting applications The bottom surface lacks a radius and is completely flat, ensuring a uniform and level base The item lacks pre-drilled holes for screws and is not supplied with screws It is advised to have the component precisely machined to suit your specific application by a qualified and competent machinist or gunsmith