AGM/Matrix MG42 Magazine Insert

AGM/Matrix MG42 Magazine Insert

Consistent, springless feeding for your MG42 support platform.

The Bull Craft AGM/Matrix MG42 Magazine Insert replaces the factory magazine internals with the Cattle Drive™ Springless Feeding System. Built for sustained AEG and HPA use, the insert eliminates traditional winding springs and inconsistent spring tension while retaining the factory magazine shell.

Each insert is manufactured in-house from durable SLS Nylon PA12 for precise fitment, low weight, and field-ready strength. A high-torque motor keeps BBs moving during sustained fire, while the available setup options support both AEG and HPA builds.

Features

• Designed for AGM and Matrix MG42 platforms
• Cattle Drive™ Springless Feeding System for consistent motor-driven feeding
• High-torque motor for sustained-fire performance
• SLS Nylon PA12 construction for strength and precise fitment
• AEG and HPA configurations available
• Bowden spring included
• HPA and AEG wiring diagrams included
• Made in the USA

HPA Setup

A Trigger Control Unit (TCU) is required when using this insert with HPA systems such as PolarStar or Wolverine. Standard HPA FCUs do not provide sufficient power for a motor-driven magazine. With a compatible TCU installed, the feeding system activates automatically with the trigger.

The insert is compatible with the Airsoft Junkiez TCU. Select the appropriate product configuration for your engine and wiring setup.

Recommended Power

For optimal feeding performance, Bull Craft recommends an 11.1V LiPo battery.

Wiring

The insert is supplied with approximately 6.5 inches of wire and no battery connector installed. This lets you select JST, Deans/T-Plug, or another connector that matches your build.

Bull Craft can install your preferred connector at no additional charge. Add the required wire length and connector type to your order note so the wiring can be prepared for your specific battery location.

Specs

• Empty weight: approximately 1.07 lb
• Loaded weight: approximately 3.1 lb with 0.25 g BBs
• HPA compatibility: PolarStar and Wolverine with a compatible TCU

In the Box

• Bull Craft AGM/Matrix MG42 magazine insert in the selected configuration
• Bowden spring
• HPA and AEG wiring diagrams

Reliable feeding. Purpose-built for the MG42.