Hop-Up Unit & Accessories

Adjustment button with o-ring to assure tightness.Redesigned pressure plate by adding an adjustment gear making accurate adjustment easier.The Hard...

Features Made from low-temp resistant rubber, perfect for colder climates Improves hopup performance in cold weather Compatible with all TM-spec A...

G&G Cold Resistant Hop Up Rubber Bucking. Blue for AEGs with airsoft Rotary Hopup Chambers.  This is the Blue winter style cold resistant G&...

Features: Made of Aircraft Rubber Improved air seal Hardness: 60-65 degrees For VSR-10 & the vast majority of GBBP. Excellent extreme temp...

Features CNC machined aluminum Improves overall inner barrel stability Sliding bar hop-up adjustment Manufacturer: Maple LeafCompatibility: Tokyo...

Features Wheel Adjusted Hop-Up Chamber CNC Full Metal Construction Action Army Original Part for AAP-01 Drop-In Fit

Features Cast metal alloy construction Factory OEM spec Bucking, barrel spring and other necessary components included Compatibility: A&K, Cl...

Features CNC Aluminum Construction Design to replace the original hop-up chamber Suitable for most AK AEG

Features CNC Aluminum Construction. Design for Replace the Original Hop Up Chamber.  Suitable for All G36 AEG

Features Slightly narrow entrance for better sealing to achieve more consistent power output Special pressure point geometry reduces inconsistency...

The Super bucking has a narrow entrance for more accurate shooting styles. The new Super Silicone version features the same design aspects of the "...

Features Metal construction Highest CNC precision made with no seems and scratches Anodized surface for elimination of friction Pack of 2 nubs Th...

Features Slightly narrow entrance for better sealing to achieve more consistent power output Special pressure point geometry reduces inconsistency...

The KWA E-10 bucking fits most KWA pistols and some SMGs.  Occasional replacement will help restore accuracy and prevent jamming. Ball bearing, w...

Works in VSR-10 rifles and WE/Marui/KJW gas guns. The Decepticons is good for better accuracy. Features: Slightly narrow entrance for better seali...

Features Injection molded polymer construction Fits most M4 series Airsoft AEG hop-up units Drop in replacement

Works in VSR-10 rifles and WE/Marui/KJW gas guns. The Autobot hop up is good for long distance shooting. Features: Slightly narrow entrance for be...

Maple Leaf MACARON (Monster) Series hop-up rubber for AEG.Same design as the original "MONSTER" series, but with updated color for easy identificat...

Features: Works with standard AEG hopups and barrels Flat hop provides more consistent contact and backspin on BBs Improve accuracy, range, and gr...

Features CNC Aluminum Construction Design to replace the original Hop-up chamber Suitable for most M4/M16 AEG

The KWA E-19 bucking fits multiple KWA models, and appears on respective diagrams as LM4 part 98, HK45 part 330, Vector part 62, and kz.61 Skorpion...

This replacement part is displayed as part number 352S on RM4/VM4 AEG 2.5/3/PTS ERG Mechbox diagram. Part 199-1601-0352S Features High quality re...

This polymer hop-up housing fits all AKR Series AEGs, both the 2.5 and 3.0 models. It includes parts 9, 116, 125, 10, 11, 12, and 317. Part 199-16...

The KM4 AEG hop-up assembly fits all KM4 Series rifles, including the new SR Series. It comes with everything pictured. Please note that this does...