1980's multi-ported muzzle-brake. Original Czechoslovak military item in new condition. Available in original blued metal, black baked enamel or Czech blue-gray baked enamel. Standard 14-1 right hand thread.
If you intend to purchase the rifle refinish option and have a rifle build done, just choose the cheaper blued steel model muzzle brake, as all accessories and parts refinishing is included with the rifle refinish price.