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SIG MPX AEG M4 Adapter Details
The TAPP SIG MPX AEG M4 Adapter lets your MPX run M4 AEG magazines for increased capacity and faster reloads. Now 3D printed in Nylon PA12 with the option of upgrading to PA11 Carbon Fiber, it offers higher strength, durability, and long-term reliability for hard-use performance.
Key Features:
– M4 Magazine Compatibility: Convert your SIG MPX AEG to use M4 AEG magazines for greater capacity and smoother reloads—ideal for extended skirmishes.
– One-Piece Magazine Adapter Design: Engineered to enhance overall reliability and ensure smooth, efficient reloading.
– Nylon PA12 with the option of upgrading to PA11 Carbon Fiber Construction: Carbon fiber–reinforced PA11 delivers superior strength-to-weight, impact and heat resistance, and extended service life versus standard polymers.
– Plug-and-Play Installation: Pre-built and ready to install—no modifications or sacrifices to existing magazines required.
What’s Included:
– Fully Assembled Adapter: The TAPP SIG MPX AEG M4 Adapter arrives ready to use right out of the box.
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: SIG MPX AEG (NOT MPX-K)
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
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
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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PRO ADAPTER
Designed for added Performance, Ergonomics and Aesthetics.
20-80% Condensed Dimensions
We've designed each system to create the sleekest profile.CNC Feed Nozzle
Areas under repeated use or load have been upgraded with replaceable CNC parts.0.01mm Precision Tolerances
BB-Stop tech optimized for flow and consistency.Individually Designed
Drums and mags are positioned to give a “meant-to-be-there” feel.







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