Leapers UTG Side Wheel Add-on Side Parallax Adjustable BugBuster Black. UTG Side Wheel Add-on Side Parallax Adjustable BugBusterCompatible with Side AO BUGBUSTER Optic SCP-M312AOWQ OnlyAids in Finely Tuning Parallax AdjustmentsAircraft Aluminum Construction with a Matte Black AnodizeLaser Engraved Distance Markers in Yardage Increments Specifications for Leapers UTG Side Parallax Adjustable BugBuster: Manufacturer: UTG Pro Color: Black Finish: Matte Fabric/Material: Aircraft Grade Aluminum Gun Make: Universal Package Contents: Leapers UTG Side Parallax Adjustable BugBuster Leapers SCP-SW080BB: Side Wheel Add-on / Side Parallax Adjustable BugBuster