MPN: G-35 / G-40 / G-45


  • Compatible with many other semi autos, not just Glocks
  • Built for aggressive muzzle rise and recoil reduction
  • Enhances shot to shot accuracy
  • Built for pistol caliber carbines and pistols
  • No dust printing from prong shooting position
  • Full-auto rated
  • Does not interfere with sights or guide rods
  • Designed and made in the U.S.A.


  • Caliber: 9mm / .40 cal. (or 10mm) / .45 cal.
  • Material: Aluminum
  • Finish: Mil-Spec Black
  • Weight:
    • 9mm: 1.089 oz.
    • .40 cal.: 0.92 oz.
    • .45 cal.: 0.88 oz.
  • Length: 1.228"
  • Width: 0.980"
  • Height: 0.80"
  • Bore Diameter:
    • 9mm: 0.378"
    • .40 cal.: 0.432"
    • .45 cal.: 0.467"
  • Thread:
    • 9mm: 1/2"-28 TPI
    • .40 cal.: 9/16"-24 TPI
    • .45 cal.: .578"-28 TPI


  • 9mm / .40S&W (or 10mm) / .45 cal. threaded barrels

*Will not work properly with SilencerCo / Battle Arms and similar barrels with shorter threads.

*Due to the added weight to the barrel and recoil reduction, it might require using a lighter (than factory) spring rate recoil spring on some semi-auto pistols.


  • 1x Glompensator G-Type Pistol Muzzle Brake Body
  • 1x Glompensator G-Type Pistol Muzzle Brake


If you've spent much time around muzzle devices, you know that most of them aren't worth throwing away. They might do their job, but man, they are aggravating. You don't need that headache in your life. If you're tired of fooling around sub-par comps, you're ready for REX. REX Silentium works, and it’s designed to work with you.


Without being vulgar, that means less can be more, and simplicity is king. How aggravating can an ordinary Glock muzzle brake be in practical use? Do you have time for set-screws, thread-locker, and a comp that shoots loose? No, you don't. Well, the REX Silentium Glock comp relieves you of all that hassle. Instead, all you need is some common sense and a wrench. Really, and I bet you already have both. Pick the REX Silentium Glock comp for your gun, crank it down tight with a wrench, and get ready for some fun.

Buyer Beware

I hope this is your first pistol caliber muzzle device. Because once you shoot through a REX Silentium Glock comp, it’s the only one you will ever want. The REX Glock muzzle brake adds a profile to your gun that belongs there. This brake doesn't interfere with the sights on your weapon or its guide rod. You will feel a significant reduction in recoil and muzzle rise. But that's not all. In case you ever go there, this comp is rated for full-auto. That means instead of spray and pray, you will drill and thrill. But, what about all the other pistol caliber comps you already have? Well, don’t you throw them away. Those old comps will make great Christmas presents for your shooting friends that you don't like.

Have a question?

Ask an Expert