Designed to mount directly to a Picatinny rail system. The Tackdriver Picatinny Black Series 5-Pin Bow Sight is made out of precision machined 6061 CNC aluminum alloy frame and offers shooters maximum adjustability with windage and elevation adjustments. Has an integrated sight level, 5 micro-adjustable .010 sight pins, a fiber housing, and a rechargeable sight light that allows for visibility and accuracy, even in low-light situations. Weight: 8.7 lbs Dimensions: 4 x 9 x 7.5 in