Hi-Capa ARP9 Adapter

$79.99

PRO Adapter

One-Piece, Low-Profile, CNC Feed Nozzle, and Advanced BB-Tech. Learn more..

Carbon Fiber

Built to last. Specialized production takes more time, its durability speaks for itself. Includes a 1-Year Standard Warranty.

Cerakote Color

Default is Grey, no Cerakote applied. Learn more..
*Drum body not cerakoted.

None Graphite Black +$39 USMC Red +$39 NRA Blue +$39 Multicam Bright Green +$39 Magpul Flat Dark Earth +$39 Bright White +$49 Gold +$49 Prison Pink +$49 Bright Purple +$49 Burnt Bronze +$49 Custom. Enter Cerakote Item ID in Checkout Notes. i.e. A-123 +$99

Extended Warranty

Extended 1/2-year US | 90-days International Learn more..

Free US Shipping On Orders Over $99 With Code "Freeship"
Proudly Made in the US 1-Year Warranty + Lifetime Support *

Product Details

Warranty/Support

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Hi-Capa ARP9 Adapter Details

Hi-Capa ARP9 Adapter

The Hi-Capa platform is one of the most adaptable and high-performance airsoft pistols available, favored for its customization options and reliability. The TAPP Hi-Capa ARP9 Adapter enhances this platform by enabling the use of ARP9 AEG magazines, significantly increasing your magazine capacity and improving reload efficiency. Designed and built in the USA, this pre-built, plug-and-play adapter ensures your Hi-Capa is always ready for extended engagements, offering seamless integration with ARP9 magazines for consistent, reliable performance.

Key Features:

ARP9 Magazine Compatibility: Adapt your Hi-Capa to use ARP9 AEG magazines, providing higher capacity and smoother reloads, ideal for prolonged skirmishes.

Advanced BB Feeding System: Ensures smooth, single-stack BB flow from source to feed lip, reducing ammo wastage and eliminating the need for inserts or double stacking.

Improved Air Seal: Designed to minimize the need for o-rings, this adapter offers a superior air seal between the magazine and the Hi-Capa adapter.

Durable Construction: Built from lightweight, durable SLS Nylon PA12 with the option of upgrading to PA11 Carbon Fiber material, this adapter is designed to withstand the demands of intense airsoft action.

Plug-and-Play Installation: This adapter comes pre-built and ready to use, with no need for additional modifications or sacrifices to existing magazines.

What‚is Included:

Fully Assembled Adapter: The TAPP Hi-Capa ARP9 Adapter is ready to use right out of the box.

HPA Foster Fitting (US Spec): Ensures a secure and reliable connection, allowing you to stay focused on the action.

Proudly made in the USA, this adapter is backed by a 30-day warranty and lifetime technical support, with access to replacement parts (fees may apply).

Compatibility: Hi-Capa (WE-Tech, Tokyo Marui, Armorer Works, Novritsch SSP1/SSP5, and similar Hi-Capa Airsoft pistols)

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.

Advanced Finishing

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 Project

1 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).

Reviews

1 review for Hi-Capa ARP9 Adapter

  1. Christopher L

    These guys stand behind their product. When I didn’t have success with the MP5 adapter (NOT THEIR FAULT…I was attempting to use AP10 style straight mags which I do not hold them accountable for lack of compatibility) they quickly shipped me another model of my choice along with an additional M4 adapter. My customer service experience was top notch and my new items work fantastic considering I’m using the proper mags. I highly recommend their products. I turned a lot of heads at the field with them.

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Carbon Fiber Nylon 11

PRO ADAPTER

Designed for added Performance, Ergonomics and Aesthetics.

+Low-Profile

20-80% Condensed Dimensions

We've designed each system to create the sleekest profile.
+Strength

CNC Feed Nozzle

Areas under repeated use or load have been upgraded with replaceable CNC parts.
+Feeding

0.01mm Precision Tolerances

BB-Stop tech optimized for flow and consistency.
+Straighter Alignment

Individually Designed

Drums and mags are positioned to give a “meant-to-be-there” feel.
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