Made of rock-solid CNC machined aluminum. Easy, 2-bolt installation. Lightweight durability. Accurate to-the-yard from 20 to 80 yards & includes calibrated tapes for bow speeds of 260 to 410 fps. Fits most current crossbows. 2 " groups from 60 yards, 4 " groups at 80 yards. Infinite adjustment. Wt.: 7 oz

Manufacturer Part Number:	OL-SD
UPC:	716415040028
Shipping Weight:	1.0 lb
Box Dimensions:	12 L x 8 W x 3 H (inches)