SIG MPX-K AEG Mini Drum Adapter

$49.99

Include TM 400rd Drum

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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SIG MPX-K AEG Mini Drum Adapter Details

SIG MPX-K AEG Mini Drum Adapter

The SIG MPX-K is an elite AEG platform, renowned for its compact versatility and field performance. The TAPP SIG MPX-K Mini Drum Adapter supercharges this platform by integrating a compact drum magazine, providing unparalleled sustained fire capability without the bulk of traditional high-capacity options. Designed and built in the USA, this pre-built, plug-and-play adapter ensures your SIG MPX-K delivers a relentless and reliable feed, transforming your SMG into a dominating force on the field.

Now 3D printed in Nylon PA12 with the option of upgrading to PA11 Carbon Fiber, it offers superior strength, durability, and long-term performance under demanding use, outperforming standard polymers in tough field conditions.

Key Features:

Mini Drum Compatibility: Adapt your SIG MPX-K AEG for massive capacity and sustained full-auto fire, providing the firepower advantage in any skirmish.

Nylon PA12 with the option of upgrading to PA11 Carbon Fiber Construction: 3D printed in Nylon PA12 with the option of upgrading to PA11 Carbon Fiber for exceptional stiffness, impact resistance, and longevity.

Precision Engineered: Machined precision surfaces ensure smooth magazine insertion and consistent alignment, preserving air-seal integrity even during rapid-fire.

Plug-and-Play Installation: Fully assembled and ready to use—install in seconds with no permanent modifications to your replica.

What’s Included:

Fully Assembled Adapter: Ready to use right out of the box (Mini Drum Magazine sold separately or as an option).

Proudly made in the USA, this adapter is backed by a 1-year warranty and lifetime technical support, with access to replacement parts (fees may apply).

Compatibility: SIG MPX-K AEG

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).

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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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