Australian made muzzle brakes.
The GB19.1 Grizzly muzzle brake is designed for calibres up to .30cal. These brakes are an easy, convenient screw on design that do not require any crush washers or special tools. Just screw the muzzle brake on all the way to the shoulder of your barrel and then fasten tight with the tool provided. Due to the perfectly aligned machined gas ports, this design disperses energy evenly around the brake, creating greater balance thus eliminating deviation from the muzzle blast.
PLEASE NOTE - Calibres over .30cal must be modified by a gunsmith.
The GB19.1 standard thread size is:
The GB19.1 Dimensions are 19.1mm (0.751in) diameter, 64.23mm (2.528in) in length and it weighs 62 grams (2.22oz).
The GB19.1 barrel profile is suitable for the following firearm for a flush fitting brake.
The GB19.1 is also suitable for many other firearms for a flush fitting brake that have this barrel profile. It can also be fitted to a smaller barrel profile, if the M15X1P thread size is what you require and a larger diameter is prefered. These are those firearms.
"SSAA Reviews the Australian Made Grizzly Muzzle Brakes" read on....