The CAT TSWIF is a high performance low back pressure micro silencer intended to be used with pinned-and-welded blast diverter muzzle devices on 5.56 AR-15 weapon systems. Adding only 2.6 inches to the system length, the TSWIF provides consistent signature reduction expediently and in a compact package. The CAT TSWIF system is available in thread patterns compatible with blast diverters from Apparition Instruments, Noveske Rifleworks, and others. When compared to other compact silencers fielded on the typical 14.5-in M4 rifle, the CAT TSWIF provides competitive performance and allows blast diverter users to maintain BATFE non-SBR compliance as required.

In this review, the CAT TSWIF performance metrics depend upon suppressing a supersonic centerfire rifle cartridge on a commonly fielded gas-operated rifle outfitted with a blast diverter, which is an incredibly difficult task. How would the CAT TSWIF perform on your M4 with a 14.5-in barrel and pinned-and-welded blast diverter or flash suppressor?