Push Propel Mechanical Paintball Marker PurplePush Propel Mechanical Paintball Marker Purple Introducing the Push Propel Mechanical Spool Valve Paintball Marker. This is an incredibly sleek looking mech marker with technology unlike any other mechanical marker available. Features: 6061 Billet Machined Complete Marker Fully Mechanical Pneumatic Firing System Pre And Post Travel Trigger Adjustment On Off Push Button ASA Tool Less Bolt Removal Snap On To Bolt Face Breech Insert Full Wrap Around