This Cytac Defense Beavertailgrip was developed for Glock pistols from GEN 1, GEN 2, and GEN 3. It eliminates the drawbacks associated with permanent modifications to your factory pistol. The beavertailgrip mates completely to the back strap of the frame, permitting the shooter's hand to conform to the frame in a more secure manner. This offers more control and allows the shooter to index the pistol on target more efficiently.
*In 2007 and later, Glock produced some pistols (in 9mm and .40 caliber), that have slightly thicker frames than most other GEN 3 pistols. These frames, which have a serial number prefix starting with the letter L (i.e. LXX123), are oversized in diameter at the trigger housing pin location. The Beavertailgrip may not fit on these oversized frames. This is a very small number of frames, and the majority of L Series serial numbered frames have no fit problems whatsoever.