Out of stock Quick view ZEV Technologies ZEV Upper Parts Kit for Glock Gen 1-4 - 9mm MSRP: $150.00 ZEV Technologies Upper Parts Kit for Glock Gen 1-4This 9mm parts kit works with a ZEV slide to create a completely functional upper assembly including all internals, an extra firing pin spring and ZEV backplate.Fits Glocks Gen 1-4 | 9mmNot compatible... Out of stock Add to Wish List