This is the Original Howling Raven 91/30 Muzzle Brake. American Made.

REDUCES RECOIL BY 50%

No need to thread or modify your barrel

Slips on around the front side post and attaches with brass set screws (Included)

This is for the original 91/30 model only and is designed to slip around the front site post. It is held in place by three brass set screws (included) Made in America out of steal with a Black Oxide coating and weights only 10oz.  

This will ONLY fit a 91/30, in its original condition. If you put an after market site on your rifle or removed the site / cut the barrel, then this will not fit.)