TAPP Hybrid AAP-01 HPA Lower

Transform Your AAP-01 into a High-Performance HPA Beast

The TAPP Hybrid AAP-01 HPA Lower is the ultimate upgrade for players looking to supercharge their Action Army AAP-01 pistol with High Pressure Air performance and AEG magazine compatibility. Crafted from rugged SLS Nylon PA12, this drop-in lower replaces the factory grip and enables your GBB pistol to operate with MP5 or ARP9 AEG magazines—dramatically increasing shot capacity and consistency while retaining the satisfying blowback recoil. Whether you're building a competitive CQB sidearm or a full-blown primary pistol setup, this hybrid HPA lower gives you the edge.

Efficient, Clean, and Built for Speed

Optimized for 100–125 PSI operation, the TAPP Hybrid HPA Lower routes your airline cleanly through the bottom of the grip, keeping your loadout snag-free and agile. The reinforced construction is built to withstand the intense mechanical cycling of the AAP-01’s gas system, providing a stable and durable platform for aggressive gameplay. A built-in 250 PSI burst disc offers added peace of mind, ensuring safety under pressure. With its user-friendly 2-screw feedlip design, mag changes and maintenance are quicker than ever.

Elite-Level Customization, Made in the USA

Made in the USA by TAPP Airsoft, this HPA lower is designed for players who demand the highest performance without compromise. It includes a US-spec Foster fitting for rapid HPA line attachment and is compatible with most AEG MP5 and ARP9 magazines (excluding CYMA Platinum). From backyard duels to tournament-level competition, the TAPP Hybrid AAP-01 HPA Lower empowers your build with capacity, control, and consistency.

Specifications

• Brand: TAPP Airsoft
• Material: SLS Nylon PA12
• Compatibility: Action Army AAP-01
• Magazine Compatibility: AEG MP5, ARP9 (excludes CYMA Platinum)
• Operating Pressure: 100–125 PSI (HPA system required)
• Air Routing: Bottom grip exit
• Included Safety Feature: 250 PSI burst disc

Features

• Converts AAP-01 to run AEG MP5 or ARP9 magazines
• Maintains realistic GBB blowback recoil feel
• Drop-in replacement for original AAP-01 lower grip
• Clean HPA routing through grip for snag-free performance
• Reinforced structure designed for intense gameplay
• Durable and lightweight nylon construction
• Includes 250 PSI burst disc for overpressure safety
• Comes with US-spec Foster fitting for quick air line connection
• Toolless 2-screw feedlip for easy mag maintenance
• Compatible with most standard MP5/ARP9 AEG magazines
• Proudly made in the USA