Matrix MP40 AEG M4 Competition Adapter

$69.99

PRO Adapter

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

Carbon Fiber

Built to last. Carbon Fiber infused. Its durability speaks for itself.

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-year US | 90-days International Learn more..

Free US Shipping On Orders Over $99 With Code "Freeship"
Proudly Made in the US 30-Day Warranty + Lifetime Support *

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Matrix MP40 AEG M4 Competition Adapter Details

Matrix MP40 M4 Competition Adapter

Take your Matrix MP40 to the next level with M4 AEG magazine compatibility and a competition-ready flared magwell for faster, more confident reloads—now 3D printed in Nylon PA12 with the option of upgrading to PA11 Carbon Fiber for superior strength, durability, and long-term performance. The one-piece, plug-and-play design delivers seamless integration and reliability under competitive pressure.

Key Features:
M4 Magazine Compatibility: Convert your Matrix MP40 to run M4 AEG magazines, with a flared magwell to speed up reloads.
Flared Magwell: Competition-focused funnel guides mags for rapid, consistent changes under pressure.
One-Piece Adapter Design: Rigid, streamlined construction for reliable feeding and consistent performance.
Nylon PA12 with the option of upgrading to PA11 Carbon Fiber Construction: Carbon fiber–reinforced PA11 offers high rigidity, impact resistance, heat stability, and longevity—lightweight without sacrificing strength or precision.
Plug-and-Play Installation: Fully assembled and ready to drop in.

What’s Included:
Fully Assembled Competition Adapter: Pre-built for immediate use—no extra modifications required.

Compatibility: Matrix MP40 AEG platforms.

HIGH-PERFORMANCE MATERIAL

CARBON FIBER.
CARBON FIBER.
CARBON FIBER.

Strength you can feel. Weight you barely notice. Precision performance. Engineered for those who demand more than plastic.

Unmatched Strength

• 38% Higher Tensile Strength
• 3x Stiffer than Nylon
• Won't deform

Superior Resistance

• High-Temp Ready
• Thermal Stability
• UV & Moisture Resistant

Pro Finish

• Sleek Matte Black
• Metal strength, plastic weight

HPA Optimized

• Lightweight composite build
• Tested for field durability

Rigid Structure

• Perfect Airseal Integrity
• Smooth mag insertion

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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Custom Cerakote Precision

30 Day Warranty + Lifetime Support

All Tapp Airsoft products include a 30-day 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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