TM KSG 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. 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

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TM KSG M4 Competition Adapter Details

TM KSG M4 Competition Adapter

The TAPP TM KSG M4 Competition Adapter lets your Tokyo Marui KSG run M4 AEG magazines with a flared magwell for faster, smoother reloads. Now 3D printed in Nylon PA12 with the option of upgrading to PA11 Carbon Fiber, it delivers higher strength, durability, and long-term reliability under hard use.

Key Features:
M4 Magazine Compatibility: Upgrade your TM KSG to use M4 AEG magazines, boosting ammo capacity and reload speed with the flared magwell design.
Flared Magwell: Beveled, competition-optimized opening guides mags for quick, consistent changes to gain an edge in high-pressure engagements.
One-Piece Adapter Design: Engineered to improve overall functionality and reliability with smooth, efficient BB feeding.
Nylon PA12 with the option of upgrading to PA11 Carbon Fiber Construction: Carbon fiber–reinforced PA11 offers superior strength-to-weight, impact and heat resistance, and extended service life versus standard polymers.

What’s Included:
Fully Assembled Adapter: The TAPP TM KSG M4 Competition Adapter is ready to use right out of the box—no modifications or sacrifices to existing magazines required.

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: Tokyo Marui KSG

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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