Description
Madbull Shark 60 Degree Hop Up Bucking (with X Type Spacing – 2pcs)
The Madbull Shark is one of the best-known airsoft hop-up buckings, and this two-pack offers the 60 degree version listed with X type spacing. Its distinctive internal design is what gives it the name, and many players and techs fit it to improve feeding consistency and hop performance.
The bucking is the rubber part in the hop-up unit that seals against the air nozzle and grips the BB to apply backspin. Because it wears with use, replacing it is a cheap and effective way to restore or improve performance, and a two-pack means you have a spare ready.
The Shark design
Retailer descriptions explain that the Shark bucking uses three internal fins that grip a single BB in the chamber, and that the design is intended to help stop double feeding and BBs rolling out of the barrel. The extra friction from the fins can also slightly build pressure behind the BB, which may raise velocity on some AEGs, though results vary between replicas.
Hardness
At 60 degrees, the rubber is softer than typical 80 to 90 degree buckings. Softer rubber gives a better seal with the nozzle and more grip, so the hop effect can be strong without pressing the nub deep into the barrel window. The X type spacing in the name relates to the spacer used with the bucking; check the product images for the design.
Key features
- Madbull Shark hop-up bucking
- Three internal fins to grip the BB
- Designed to help prevent double feeding and roll-out
- 60 degree rubber for grip and air seal
- Listed with X type spacing
- Pack of two
What’s in the box
- 2 x Madbull Shark 60 degree hop-up buckings
Compatibility
Intended for AEG-style hop-up units and inner barrels. Not every replica will see the same gains, and some set-ups may need adjusting, so test thoroughly after fitting. Check your hop-up unit and inner barrel before ordering.
Care and maintenance
Apply a little silicone oil inside and outside the bucking before installing it. Buckings are wearing parts: replace them when you upgrade, when you change inner barrels, or if you see tears or pinholes, which can appear when a used bucking is removed and refitted. Use clean seamless BBs.
Who is it for?
Players and techs who want to try one of the most popular performance buckings, particularly where feeding consistency is a problem.
Please note: Buckings only. Fitting should be done by someone confident with hop-up units.
Please note: what's in the box can vary between batches. If a detail such as included magazines, battery, charger or connector type matters to you, contact us or call 01842 683567 and we'll confirm before you order.
