The PTS Syndicate Griffin M4SDII gets reviewed by Jonathan Higgs of Airsoftology. Fully licensed by Griffin Armament the M4SDII is a mock sppressor designed for AR platforms and has a unique SDQD mounting interface... "The Griffin M4SDII appears mild mannered at first glance, but this licensed mock suppressor for PTS has a unique trick up its sleeve; which Jonathan explores in this Airsoftology review."

The PTS Syndicate Griffin Armament M4SDII Mock Suppressor gets reviewed by Hyperdouraku. This being a Mock Suppressor, is more of a Barrel Extension. This is compatible with all the PTS Griffin products such as the Muzzle Break, Flash Comp, Tactical Compensator, and Flash Suppressor. According to Yas, the QD design makes it easy to install on A2 and similar muzzle devices. He recommends as he likes the texture and fit.