Egw 4140 CARBON STEEL PICATINNY RAIL BLANK 16 89030

Scope base stock is machined to MIL STD 1913 Picatinny dimensions for fabricating custom rifle or handgun optic bases. Pre-cut cross-slots speed the job and allow use of any Picatinny scope rings. Ideal for quickly building a versatile base for a gun with non-standard hole spacing, rather than drilling new holes in the receiver. Available in pre-hardened steel or aluminum, both with a matte black finish. Bottom of the base is flat, so it can be radius cut to fit any receiver contour.