Glock Locking Block G17/20/21/24/31/34/35/37. Developed using several of the most extremely robust and long lasting materials in existence these Pistol Slides & Slide Parts via Glock offers you a product that will give a great deal of reliability. Glock has been making top quality products for a very long time and the Glock Locking Block is their very own manner of showing you how much they are concerned. At OpticsPlanet we ensure that it is our obligation to obtain the best product for your requirements and presenting the Glock Locking Block is something that we're pleased to offer. Specifications for Glock Locking Block: Manufacturer: Glock Gun Make: Glock Gun Model: Glock 35 Glock 34 Glock 24 Glock 17 Glock 21 Glock 37 Glock 31 Glock 20 Package Contents: Glock Locking Block What firearm models does the manufacturer say Glock Locking Block is compatible with? The manufacturer suggests that Glock Locking Block is compatible with Glock 20 Glock 31 Glock 37 Glock 21 Glock 17 Glock 24 Glock 34 Glock 35Glock 1447: Locking Block G17/20/21/24/31/34/35/37