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. The Madbull sniper hopup bucking will take your rifle to another level of precision!

Madbull Sniper Accelerator Hop Up Bucking (2pcs) for Echo1 M28 & Marui VSR-10
Softer rubber/silicone material
Specially designed to seal compression
Prevents double feeding
Two accelerator hopup buckings per package
Increase Performance Diameter: 10mm Length: 23mm Include 2 pcs Hop-up Rubber