The C-A-T®’s unique dual securing system avoids the use of screws and clips which can become difficult to operate under survival stress or where fine motor skills are compromised. The C-A-T’s unique dual securing system avoids the use of screws and clips which can become difficult to operate under survival stress or where fine motor skills are compromised. The C-A-T® uses a Self-Adhering Band and a Friction Adaptor Buckle to fit a wide range of extremities combined with a one-handed windlass system. Reinforced windlass clip & highly visible security tab includes a writeable area to record the time of application. Most other comps/brakes require for you to "time" during install and potentially have to use shims. SIG Sauer for years have been working together with Bruce Gray and Grayguns, which is considered by many gun owners to be the top custom gunsmithing company specializing in SIG P320s. Grayguns is just one of many gun companies that sells a replacement steel guide rod for the full-size P320 that accepts 1911 recoil springs. Glock OEM. The Agency Arms barrel is made of 416R Stainless Steel and currently for available for the Glock 17 and 19. Another added features of the Agency Arms 417 Compensator is a machined hole compatible with all Glock front sights, allowing users to enhance their sight radius.