Discontinued - the Gas Mongrel muzzle brake has been replaced by the new Hybrid version.
The WR Gas Mongrel muzzle brake is an innovative lightweight brake that dramatically reduces recoil and vertical jump.
- Designed specifically for competition it offers class leading performance:
- Maximum recoil reduction - 71% to 84%
- Maximum vertical jump reduction - 83% to 91%
- Vertical bounce control - no additional bounce, only 2% vertical vectoring
- Enables faster and more comfortable handling of targets without loss of sight picture
- Perfect for disciplines such as PRS, Practical, Speed Steel, Nordic Felthurtigskyting and ELR
Unlike many brake designs which are more art than science, the Gas Mongrel is the culmination of years of research into gas flow modeling and barrel harmonics by a team with nearly two decades of fluid dynamics design.
- 2 pre-load chambers
- 4 conical negative angled ports offering 100cm2 negative surface area
- 3x3 increasing ports work gas against gas and direct lazy gas to the final port at bullet exit
- Lightweight 7075 aluminium design - just 65-70g (depending on model)
- Dissipates heat 5 types faster than steel
- No gas cutting issues
- Just 75mm long
- Helmholtz resonance - additional in-barrel resonance is minimised by controlling exit of pre-load gases with 3 step chamber design
- Shooter comfort - massive recoil reduction makes for less shoulder fatigue - the redirected blast generated is perfectly acceptable for outdoor use with hearing protection
Available in two formats, standard and magnum.
Three standard sizes (22mm at barrel to 34mm tapering)
- Up to 6mm (.243)
- Up to 7mm (.284)
- Up to .30 cal (.308)
Available in five threads:
- 1/2x28
- M14x1
- M18x1
- 5/8x24
- 3/4x24
Usage and Fitting
To attach and time/clock the brake (so it is secured with the flat base horizontal) there are 3 options:
- Use the supplied half nut or jam nut
- Brake-to-barrel - Get a reputable gunsmith to machine the rear of the brake for correct clocking flush to your barrel as required
- Back the brake up to a crush washer, shim or O ring
WR recommend using a reputable gunsmith if you do not have experience with fitting brakes.
WR do not recommend designs with an integrated nut, while convenient it is very rigid and not good for the metal elasticity.
WR recommend brakes are removed before cleaning - cleaning both the barrel and brake.