AA CNC Aluminum Hop-up Unit for AAP-01 GBB – Grey

CNC Hop-Up Chamber for AAP-01 by Action Army
This precision aluminum hop-up chamber is designed for the popular full-auto Action Army AAP-01 and AAP-01C gas pistols. Made using CNC machining from high-quality aluminum, it ensures excellent durability and airtight sealing. The chamber greatly improves performance consistency and allows more precise hop-up pressure tuning. Thanks to the redesigned pressure system, it supports the use of heavy BBs ranging from 0.28 to 0.40 grams. The locking lugs are sized for GBB / VSR type inner barrels. The internal design ensures optimal pressure around the bucking, delivering perfect sealing, maximum muzzle velocity, and reliable BB feeding. Along with a quality bucking and barrel, this is a core upgrade part for boosting accuracy and extending range. As this is an official factory upgrade, you get guaranteed drop-in compatibility.

Key Features

CNC aluminum construction:Durable, lightweight, and precisely machined for stable performance.
More precise hop-up adjustment:Improves trajectory, range, and accuracy.
Compatible with GBB / VSR barrels and buckings:Easy installation with no modifications needed.
Enhanced bucking sealing:Improves shot-to-shot consistency and reduces variation.

Technical Specifications

Material: CNC-machined aluminum
Compatibility: Action Army AAP-01 / AAP-01C
Hop-up bucking type: GBB / VSR
Inner barrel type: GBB / VSR

Package Contents

CNC aluminum hop-up chamber for AAP-01
Mounting components