Madbull M4 Metal Body Version 2 – Spike Licensed CNC Aluminum Airsoft AEG Receiver Set

Upgrade your airsoft M4 build with the Madbull M4 Metal Body Version 2 – Spike. This CNC-machined aluminum receiver set features officially licensed trademarks and a matte black finish, making it a distinctive choice for a custom M4-style airsoft AEG project or a replacement for an existing receiver.

Madbull’s Version 2 design includes self-retaining receiver pins that stay attached to the body, helping reduce the chance of losing them during disassembly. The updated upper receiver is designed to provide a more secure fit between the upper and lower halves, while the shortened stock tube accommodates compatible buffer tubes designed for LiPo battery setups.

The set also includes a Madbull Ultimate Hop-Up unit, giving builders a key component for completing their receiver installation. Whether you're refreshing a worn receiver or assembling a custom airsoft M4, this metal body set brings together licensed styling and practical design updates in one package.

Compatibility note: This is a receiver set for an airsoft replica, not a complete airsoft gun. Verify compatibility with your gearbox, front-end assembly, stock system, and other components before purchasing. Madbull specifies a Tokyo Marui-style dust cover system and notes compatibility with JG M4 and Tokyo Marui M4 dust covers.

Features & Specifications

• Brand: Madbull

• Model: M4 Metal Body Version 2 – Spike

• Product Type: Airsoft M4 AEG metal receiver set

• Construction: CNC-machined aluminum

• Finish: Matte black

• Trademarks: Officially licensed

• Receiver Design: Updated upper receiver designed to reduce upper/lower receiver play

• Receiver Pins: Self-retaining design

• Stock Tube: Shortened design for use with compatible LiPo-oriented buffer tubes

• Hop-Up: Madbull Ultimate Hop-Up unit included

• Dust Cover System: Tokyo Marui-style; manufacturer identifies JG M4 and Tokyo Marui M4 dust covers as options

• Manufacturer Model Number: M4-BODYV2-SPIKE

Package Includes: 1 × Madbull M4 Version 2 metal body set, 1 × Madbull Ultimate Hop-Up unit, and installation hardware.