MPN: GF9 / GF40 / GF45


  • Compatible with Stormlake, Lonewolf and other threaded pistol barrels
  • Low-profile - does not obstruct sight alignment
  • Small and compact yet highly effective
  • No dust printing shooting from prone position
  • Built for pistol caliber carbines and pistols
  • Full-auto rated
  • Designed and made in the U.S.A.
  • Integral lock nut included


  • Caliber: 9mm / .40 cal. (or 10mm) / .45 cal.
  • Material: Hardened Steel
  • Finish: Mil-Spec Black
  • Weight (with Muzzle Lock Nut):
    • 9mm: 3.35 oz.
    • .40 cal.: 3.11 oz.
    • .45 cal.: 2.96 oz.
  • Length: 1.89"
  • Width: 1.15"
  • Height: 0.81
  • Lock Nut Inner Diameter:
    • 9mm: 0.51"
    • .40 cal.: 0.58"
    • .45 cal.: 0.58"
  • Thread:
    • 9mm: 1/2"-28
    • 9mm: M13.5-1 LH
    • .40 cal.: 9/16"-24
    • .40 cal.: M14.5-1 LH
    • .45 cal.: .578"-28


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

*Please make sure the barrel outer diameter is smaller than the lock nut inner diameter.

*The barrel must have a noticeable step where the threads end on your barrel. The extra thread allows the included Integral Nut to sit up against the wall/step, so the main muzzle device can have something to thread onto and secure tightly in place.


  • 1x GunFighter Pistol Muzzle Brake
  • 1x Muzzle Lock Nut


If you have been searching for the perfect pistol caliber muzzle brake, you likely have run into quite a few that are merely cut-down versions of full-size brakes. The Rex Silentium GunFighter Muzzle Brake resets the bar to new heights with their line of muzzle brakes. If you run pistols, a pistol caliber carbine, or a sub-machine gun you simply have to get your hands on a Gunfighter Muzzle Brake.

This Is as Serious as A Heart Attack

This pistol carbine compensator is proudly made in the USA out of American steel. No doubt, the first thing you will notice is that it’s very light and compact but don’t let that fool you. This brake didn’t come to play, it came to conquer. This little pistol caliber muzzle brake lives to conquer your weapons recoil and muzzle rise so you can do your job and do it well.

Fast, Flat, And on Point

Whether you squeeze off one round or burn an entire magazine this pistol carbine compensator delivers. If you have the license and the equipment to do so, the fact that this baby is rated for fully automatic fire is right up your alley. In fact, the faster you fire, the better the GunFighter Muzzle Brake performs. Its profile is uniquely suited to iron sights, you’ll find that the brakes flat top keeps your sight plane clear. You will notice that this pistol caliber muzzle brake is ported on the sides and top but not the bottom. That gives you great performance without a dust cloud in your face when firing from a prone position. So, don’t ever “spray and pray” again, take control with a GunFighter.

*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.

Have a question?

Ask an Expert