Glock Gen4 Beavertail Backstrap Kit G17/22/31/34/35 and 37

Glock Gen4 Beavertail Backstrap Kit G17/22/31/34/35 and 37

Glock Gen4 Beavertail Backstrap Kit G17/22/31/34/35 and 37. Factory backstrap kit for the Glock 17, 22, 31, 34, 35, and 37. Works ONLY on Gen4 and Gen5 Glocks