
KWA USP Compact Mini HPA Drum Adapter
$119
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Proudly Made in the US 1-Year Warranty + Lifetime Support *
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KWA USP Compact Mini HPA Drum Adapter Details
KWA USP Compact Mini HPA Drum Adapter
The TAPP Mini HPA Drum Adapter for the KWA USP Compact gives you the extra capacity and performance you need for longer airsoft skirmishes. This adapter offers a significant upgrade by allowing you to use a mini HPA drum, reducing reload times and increasing your tactical advantage.
Key Features:
– Mini HPA Drum Compatibility: Adapt your KWA USP Compact to accept a mini HPA drum, boosting your ammo storage for extended gameplay.
– HPA Powered: Optimized for 150 max, recommended PSI: 150 max, recommended 120, delivering reliable and consistent performance during high-intensity airsoft battles (HPA kit available separately at tappairsoft. com/hpa).
– Improved BB Flow: The advanced feeding system ensures smooth BB delivery for maximum efficiency.
– Durable Construction: Made from high-strength SLS Nylon PA12 with the option of upgrading to PA11 Carbon Fiber material, designed to withstand the rigors of intense gameplay.
– Ready to Use: Pre-assembled for immediate use, this adapter requires no additional modifications or assembly.
What‚is Included:
– Fully Assembled Mini HPA Drum Adapter: Pre-built and ready to use right out of the box.
– HPA Foster Fitting (US Spec): Secure and reliable air connection for uninterrupted performance.
Compatibility: KWA USP Compact
CARBON FIBER. CARBON FIBER.CARBON FIBER.
Strength you can feel. Weight you barely notice. Precision that defines performance. Matte black, rigid, and ready — engineered for those who demand more than plastic.
Unmatched Strength and Rigidity
• Up to 38% Higher Tensile Strength – 69 MPa vs. 50 MPa for Nylon 12, giving parts more load-bearing capability. • Nearly 3× Stiffer – With a tensile modulus of 5.3 GPa (vs. 1.9 GPa), PA11 CF parts hold their shape under pressure and stress. • Over 65% Greater Flexural Strength – 110 MPa vs. 66 MPa for Nylon 12 means stronger parts that won’t bend or deform.
Superior Heat and Environmental Resistance
• Designed for high-temperature applications where Nylon 12 softens or degrades. • Carbon fiber reinforcement improves thermal stability and lowers thermal expansion for precision even under heat. • Naturally resistant to moisture and UV exposure, ideal for rigorous outdoor use.
Professional Finish and Lightweight Design
• Carbon fiber infusion produces a sleek matte black surface — functional and aesthetic right off the printer. • Delivers metal-like strength at a fraction of the weight, enabling lighter, more efficient assemblies.
Designed for High-Pressure HPA systems
• Lightweight carbon fiber composite reduces load without sacrificing strength or rigidity. • Tested for durability across extreme temperature and humidity conditions to ensure reliable field performance.
Rigid Carbon Fiber Structure
• Low expansion under heat preserves airseal integrity during rapid-fire or sustained full-auto use. • Machined precision surfaces ensure smooth magazine insertion and consistent alignment with feed paths.
Custom Cerakote & Precision Coatings
Our in-house finishing delivers Cerakote and precision laser engraving with exceptional durability and style. Every surface is treated, coated, and inspected to ensure flawless performance and lasting quality.
Start Your Project1 Year Warranty + Lifetime Support
All Tapp Airsoft products include a 1-year warranty. We also offer lifetime support for technical issues and replacement parts (fees apply).
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PRO ADAPTER
Designed for added Performance, Ergonomics and Aesthetics.
20-80% Condensed Dimensions
We've designed each system to create the sleekest profile.CNC Feed Nozzle
Areas under repeated use or load have been upgraded with replaceable CNC parts.0.01mm Precision Tolerances
BB-Stop tech optimized for flow and consistency.Individually Designed
Drums and mags are positioned to give a “meant-to-be-there” feel.





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