Shredder Concave Hop Up Spacer airsoft nub SCS
Shredder Concave Hop Up Spacer airsoft nub SCSReplace your stock hop-up Spacer/Nub with the Shredder Concave Hop Up Spacer. The concave shape hop up spacer is designed to provide 2 points of contact on the top of the BB to provide a more uniform backspin on the BB to provide the straightest possible BB flight.Mil Specs:Concave shape increases Accuracy and VelocityCompatible with most AEGS with Adjustable Hop UpPrecision CNC MachiningMade in the USA!formally Polar Star