This version of the FSC556 Tactical Compensator has been made as a multiple suppressor adapter version. The SM556 will accomodate the Knights QDSS-NT4 suppressor as well as the Gemtech HALO suppressors.
This device has been classified as a non-flash suppressing device by the BATFE.
This device will ship with a PWS Shim Set.
This unit is 2.2" in length, .865" (22mm) in diameter and is threaded 1/2x28 RH.