Dealers can now order the Accelerator Ho-Up Bucking for airsoft sniper rifles as MadBull Airsoft announce its release... "The Madbull Sniper Accelerator Hopup Bucking is designed with a soft rubber and silicon material to allow for maximum adjustment and increase overall performance of your sniper rifle. The bucking is specially designed to seal compressed air and prevent double b.b. feeding. Each package comes with two bucking that work with the Echo 1 M 28 & VSR-10 style rifles.

crazyNCman got the A Plus Devil Hop-Up Bucking to install for an AEG test after doing an airsoft retailer review. He looked into its claims of increase in range and accuracy but it seems that he wasn't really impressed with it. He'd rather stick with the R-Hop which are made for AEGs and also recommends that you do likewise. No actual test footage shown, so you might have to do your own to confirm his findings.