These are solid brass muzzle brakes, milled from scratch. They do not
deaden the sound or alter the velocity; they are for looks only.
fit the standard 7/16" OD Crosman barrels and are held in place with a
brass set screw. They will fit the 2240, 2250, 2300 line, 2400 line and
the 2260. They will fit 1322/1377 that are modded with longer barrels.
A front sight post (similar to
this) can be added if you're not
using a scope. Otherwise, I'd leave it as-is, shown in the photos.