10 x 4 Oval, 16" Length, 3" In 2.5" Out , Special Silencer (OOS) 201154

10 x 4 Oval, 16" Length, 3" In 2.5" Out, Special Silencer (OOS). A "special" configuration refers to a silencer that is somehow distinct from the others on our list, usually by virtue of being side entry or having a special chamber inside.