Agency Arms Gen3 Compensator, Features a single top venting port and a front sight hole, Two set screws with an Allen Wrench and a vial of Rockset are included in package, Compatible with the Glock 17/19/34, Standard 1/2 x 28 thread pitch, Black finish 417S-G3-BLK
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. Compatible with the 17″19 and 34.