This Dual Offset Mount allows you to mount virtually anything optics, sights and scopes you want. It is compatible with Tippmann A5, Tippmann 98, Spyder MR1 MR2 MR3, PCS US5, Storm, Ariakon, Miltech, Armotech, BT paintball marker or any other paintball markers with a 7/8 weaver or 20mm picatinny rail. With this offset mount, you can take your aim easily because your goggle does not get in the way. Your hopper is complete out of sight.