P/N: PT-HM-MLOK: HHV / Hard Headed Veterans / MLOK Helmet Mount Set for Most Tactical Headsets Compatible w/ most tactical headsets by: 3M Peltor Select COMTAC/XPI/SwatTac/Sport-TAC/Tactical6 Headsets, Earmor Mod3, PolTact V1/V2 headsets, & most tactical headset utilizing metal prong for ear cup suspension. **Not Compatible w/ Ops-Core AMP Headsets** Mounts are able to be locked in the "Use" position and clicked away from the ears and swiveled towards the back of the helmet when not in use. 30 Day Fit & Function Money Back Guarantee. Purchase with Confidence. Usually ships in Hours, Delivers in Days