These muzzle brakes are 7075 aluminum (brass coming soon). They are for the
Crosman 1077 and 2100/2200.
They do not suppress or silence; they are for
cosmetic use only.
The integral front sight on these guns acts as a barrel support. To install
the brake requires removing the front sight.
So, also included (not pictured) is a ground down front sight that acts as
a barrel support only. The brake then slides onto the shroud and is held in
place with a set screw.