This 9mm Glock Upper Receiver matches nicely with our new Glock Lower Receiver. This billet upper receiver has a built in Bolt-Hold-Open linkage. Used in conjunction with our Glock Lower Receiver ...

Designed to accept 9mm Glock magazines. This receiver has a solid last round bolt hold open feature machined in. It also includes a built-in Tension Screw to reduce upper receiver movement.