AEG Internals

A simple Tamiya-to-T-connector converter, letting you run a Tamiya-connector battery in a replica or charger wired for the T-connector (Deans-style) standard without rewiring or soldering.

Key features:

• Converts Tamiya connector to T-connector
• Simple plug-in adapter, no soldering required

Guarder Teflon Grease for AEG Gearbox (#GE-07-30) is a specialist lubricant for gearbox internals, reducing friction and wear on gears and moving parts for smoother, longer-lasting performance.

Key features:

• Teflon-based specialist grease
• Reduces friction and wear on gearbox internals
• Suitable for AEG gearbox maintenance

The Specna Arms Polymer Piston (14 steel CNC teeth) gives you a durable, direct-fit upgrade piston combining a lightweight polymer body with precision CNC-machined steel teeth for reliable, long-lasting gear engagement.

Key features:

• Polymer body with 14 CNC-machined steel teeth
• Durable, direct-fit gearbox upgrade
• Precise gear engagement

A Deans-type battery connector, giving you a low-resistance, secure connection point for wiring or rewiring your battery leads. A simple, reliable spare for any airsoft workshop.

Key features:

• Deans-type connector, male/female pair
• Low-resistance, secure connection
• Useful for rewiring or repairs

Guarder AEG/GBB MOS2 Grease (#GE-07-33) is a specialist lubricant for airsoft internals, reducing friction and wear on gears and moving parts across both AEG and GBB systems.

Key features:

• Suitable for both AEG and GBB internals
• Reduces friction and wear on gears and moving parts
• Specialist MOS2 formula

The Guarder Oil Temper Wire AEG Upgrade Spring (SP140) gives your gearbox a durable, consistent upgrade spring for increased power output over a stock spring.

Key features:

• Oil-temper wire construction for durability
• SP140 rating
• Direct fit for standard V2/V3 AEG gearboxes

Always check the resulting power output against your site's FPS/Joule limit before play.

The Guarder Marui M16 series anti-heat selector plate is a direct replacement internal component for M16-platform AEGs, helping maintain consistent selector function over extended use.

Key features:

• Direct replacement for M16-series AEG internals
• Anti-heat design for consistent function
• Black finish

The SA Dark Matter™ is a brushless electric motor, meaning it operates without the carbon brushes found in traditional DC motors. This brushless technology enables smoother, more efficient operation, delivering higher power output that significantly boosts a gun's overall performance — including a faster rate of fire and reduced trigger response time for greater accuracy and faster shooting speed.

The biggest advantage, though, is extended battery life. With a brushless motor, an 11.1V 1000mAh battery can deliver 5,000+ shots, compared to roughly 1,000 rounds from a standard brushed motor. The only trade-off is a higher upfront cost — but this is easily offset by zero maintenance requirements and a significantly longer service life.

Built for durability, the motor is housed in a high-quality aluminum casing with an aluminum end cap. Specna Arms also offers replacement end caps in both aluminum and nylon, in case the connector ever gets damaged.

All Specna Arms brushless motors are rated for use with springs up to M190, but RPM should be chosen based on your specific spring setup — as a rule, the stronger the spring, the lower the recommended RPM.

Key Features

• Brushless technology: No carbon brushes, for smoother and more efficient operation
• Improved performance: Faster rate of fire, reduced trigger response time, greater accuracy
• 5x longer battery life: 5,000+ shots per charge vs. ~1,000 with brushed motors
• Zero maintenance: No brushes to wear out or replace
• Durable construction: Aluminum casing and end cap
• Replaceable end caps: Available in aluminum or nylon
• Spring rated: Compatible with springs up to M190 (choose RPM based on spring strength)

This premium spring by Guarder is designed for electric AEGs and manual SVDs. Made from tempered Si-Cr wire, it delivers a long lifespan and dependable reliability shot after shot.

The spring's progressive (irregular) winding eases compression during the initial phase while maintaining sufficient force for optimal weapon performance. Guarder springs hold their performance consistently even after thousands of shots — unlike cheaper alternatives, their actual output reliably matches their rated stiffness.

Guarder is a renowned Taiwanese brand known for producing high-quality airsoft parts. Its focus on precision manufacturing and strict quality control has earned it a solid reputation among airsoft upgrade parts manufacturers.

Key Features

• Tempered Si-Cr wire: Long lifespan and reliable durability
• Progressive winding: Smoother compression with consistent power output
• Proven consistency: Maintains rated performance even after thousands of shots
• Trusted brand: Manufactured by Guarder, known for precision and quality control

Machined from hardened steel, these 7mm bushings feature a double oil groove that holds lubricant against the gear shafts for smoother rotation and reduced wear inside a Version 2 or Version 3 gearbox. Swapping worn stock bushings for a precision steel set tightens gear alignment, cuts drivetrain slop, and helps your AEG run quieter and more efficiently over time. Sold as a full set to replace all shaft positions in a standard gearbox.

This 30-piece set of 0.1mm gear shims lets you fine-tune the spacing between the spur, sector, and bevel gears inside your AEG gearbox for a tighter mesh and quieter operation. Precise shimming reduces gear wear, improves torque transfer, and helps eliminate rattling or premature stripping during a Version 2 or Version 3 gearbox rebuild. A handy accessory for any airsoft technician performing internal upgrades or routine maintenance.

Part of ASG's ULTIMATE Upgrade line, this Version 2 gearbox tappet plate is molded from heat-resistant, reinforced polymer to hold up to repeated cycling far better than a stock plate. The tappet plate rides against the sector gear to drive the air nozzle back and forth each shot, so a stronger, truer-fitting plate means more consistent BB feeding and less chance of cracking under high rate of fire. A simple, affordable swap for anyone rebuilding or tuning a V2 gearbox.

• CNC machined pinion steel gear.
• High-grade silver plated wiring and larger carbon brushes.
• Enlarged motor-shaft ball-bearing stabilizers.
• Heat resistant magnets (Neodym).
• Precision built motor housing.
• Silicon steel rotor.
• CNC machined stainless steel shaft.

Guarder Progressive Spring for AEG with a stiffness of SP110 (M110).

Offers performance of 104 - 110 m/s.

Made from tempered Si-Cr wire.

The Maple Leaf Inner Barrel (6.02x470mm) is a tight-bore upgrade barrel for AEG replicas, improving accuracy and consistency over a stock barrel with precise internal tolerances.

Key features:

• 6.02mm tight-bore diameter, 470mm length
• Precision-machined for improved accuracy
• Compatible with AEG platform replicas

The Madbull Black Python Tight Bore Inner Barrel (6.03x208mm) is a well-regarded upgrade barrel for AEG replicas, improving accuracy and consistency over a stock barrel with precise internal tolerances in a compact length.

Key features:

• 6.03mm tight-bore diameter, 208mm length
• Precision-machined for improved accuracy
• Compatible with AEG platform replicas

The Maple Leaf Inner Barrel (6.02x310mm) is a tight-bore upgrade barrel for AEG replicas, improving accuracy and consistency over a stock barrel with precise internal tolerances.

Key features:

• 6.02mm tight-bore diameter, 310mm length
• Precision-machined for improved accuracy
• Compatible with AEG platform replicas

A replacement or upgrade charging handle for AK-platform AEGs by CYMA, giving you a solid, ergonomic grip point for cycling and reloading. A simple external swap that improves handling without any internal work required.

Key features:

• Direct fit for AK-platform AEGs
• Improved ergonomic grip for cycling and reloading
• Simple external replacement, no internal disassembly needed

An enhanced safety lever for AK-platform AEGs by CYMA, giving you a larger, easier-to-reach lever than the stock part for faster, more positive safety/fire selector changes — handy for gloved hands or fast-paced CQB.

Key features:

• Enlarged, ergonomic lever for faster selector switching
• Direct replacement for AK-platform AEGs
• Easier to operate with gloved hands