King Arms M1/M2 MP5 PRO Adapter

$258.99

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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King Arms M1/M2 MP5 PRO Adapter Details

King Arms M1/M2 MP5 Pro Adapter

The King Arms M1/M2 is a long and cumbersome rifle, often challenging to maneuver in fast-paced airsoft games. The TAPP King Arms M1/M2 MP5 Pro Adapter transforms this platform by enabling the use of MP5 AEG magazines, making it more agile and user-friendly. Whether you’ re looking to enhance your reloading speed or improve the overall handling of your M1/M2, this adapter makes your rifle more usable and fun. Designed and built in the USA, this fully integrated, low-profile adapter fits seamlessly with the natural contours of your rifle, providing a smoother, more efficient airsoft experience.

Key Features:

MP5 Magazine Compatibility: Adapt your King Arms M1/M2 to use MP5 AEG magazines, reducing the cumbersome nature of the rifle and making it more enjoyable to use in various combat situations.

HPA Powered: Optimized for 150 max, recommended PSI: 150 max, recommended 120, this adapter ensures consistent and reliable performance, enhancing the usability of your M1/M2 (HPA kit available separately at tappairsoft. com/hpa).

Pro Design: Fully built as a one-piece adapter, designed for a low-profile fit that aligns perfectly with the overall structure of the M1/M2, improving both functionality and aesthetics.

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

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

What‚is Included:

Fully Assembled Adapter: The TAPP King Arms M1/M2 MP5 Pro Adapter comes pre-built and ready to use, with no need for additional modifications or sacrifices to existing magazines.

HPA Foster Fitting (US Spec): Ensures a secure and reliable connection, keeping your focus 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: King Arms M1/M2

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.

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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).

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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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