Gas regulators, sights and springs Sept 18, 2011 10:57:00 GMT 1 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by daniel on Sept 18, 2011 10:57:00 GMT 1 For sale,Some -MK3 Gas regulators-Mk1 drum sight without the plunger spring, plunger and drum detent spring And Mk2 return springs (inner and outer)Feel free to ask for pictures