The KAC M4QD Flash Hider is an effective flash suppressor that also serves as a platform for attaching a Knight’s Armament quick detach QDSS-NT4 sound suppressor. Comes complete with a 7-piece shim kit.

Specifications:

Weight: 2.4oz (68g)

Length: 1.875" (47.625mm)

Thread Size: 1/2" x 28

Suppressor Compatibility: KAC QDSS-NT4