Check the listing for details. Glock 19 Beavertail Backstrap Kit for 19 / 23 / 32 / 38 Fits only Gen 4/5.. Condition: New. Listed at 29.91 USD. BACKSTRAP SET G19, G23, G32 (GEN4 or 5 ONLY); BLACKThe GLOCK Modular Back Strap System enables the pistol to adapt to an individual shooter’s hand size. Installing and removing the back straps is a simple procedure and adding or removing a back strap does not change the grip angle of the pistol. The smallest back strap is integrated in the GLOCK MBS frame reducing the trigger distance of the standard size frame by approximately .08 in. The medium back strap adds approximately .08 in – equaling the size of a standard frame – and the large back strap increases trigger distance by a total of approximately .16 in.Models: G19, G23, G32 (Gen4 or 5 only) This item is BRAND NEW and has never been used.MSP Sports is an authorized retailer for LEE Precision products.Fast Shipping and 100% Satisfaction Guaranteed!Any item we sell can be returned for a full refund (for any reason).* WE NEVER CHARGE A RESTOCKING FEE *Backed by the MSP Sports Guarantee. If your item is lost or damaged in transit we will replace your item or refund you 100% including any shipping charges!