The Agency Arms 417 Compensator is threaded with the standard 1/2×28 thread pitch. It features a single top venting port and it also features a front sight hole. It is designed to utilize the OEM recoil spring assembly and the front sight hole allows you to transfer your existing front sight from your slide to the comp. Fits GLOCK Gen 3 17/19/34.

• Included 417 Comp (Generation specific), 2 Set Screws with an Allen Wrench, Vial of Thread Locker