PX-7 Mechanical Pour GunTechnical Specs for PMC's PX 7 Spray Gun The NEW PX 7 mechanical purge gun is a celebrated gun on PMC's 10 year anniversary. This gun is designed for open pour applications and provides accurate on ratio dispensing and handles a variety of materials. The PX 7 delivers repeatable, accurate shots as well as accurate, on ratio dispensing. The gun is lightweight and easy to use. Mechanical Purge: PX 7 incorporates a valving rod to mechanically purge the