BeaverTail Adapter, Fits Glock: Gen 1 2 3 Glock 17 19 22 23 24 31 32 34 35 37 38 Beavertail fits standard and compact glocks: Gen 1 2 3 - 17 19 22 23 24 31 32 34 35 37 38 Beavertail Adapter fits to the back strap of the Clock frame Permits the shooter's hand to conform to the frame in a firm and secure manner Color: black Size: large, locking pin included in package