Gearbox Parts

When it comes to upgrading your ball bearings the ceramic silicon nitride ball bearing is the ultimate choice for those wanting the very best in t...

Designed to offer enhanced performance to any custom airsoft build, the Ultimate BOOST range of gears provide smooth and reliable power transfer i...

A high strength spring guide with full metal construction. Features steel bearings under a rotatable guide to minimise friction when the spring is...

High quality tappet plate from ULTIMATE. Incredibly strong construction is highly resistant to flex and breakage in even the highest speed gearbox...

A high quality switch for all v.2 gearboxes. Contact points have a high quality plating to ensure a low inner resistance and minimal heat build-up...

Product can also be black in colour depending on batch. A premium, high strength spring guide with full metal construction. Features steel bearing...

High quality air nozzle from ULTIMATE. The AEG listed in the name is a guide only; this nozzle can be used in any gearbox where the required nozzl...

Enhance your AEG with this high performance Cylinder Head The ULTIMATE® Upgrade Series Cylinder Head is CNC manufactured in machine grade aluminiu...

A set of 7mm bearings from ULTIMATE. These bearings are precision made in Japan from solid steel. The 7mm design minimises friction and wear whil...

Affordable, compact and high quality this HPA system features a lightweight all-aluminum tank and regulator with pressure gauge. Ideal for a tigh...

High quality air nozzle from ULTIMATE. The AEG listed in the name is a guide only; this nozzle can be used in any gearbox where the required nozzl...

Constructed from solid steel with an attractive ribbed external finish. These high performance cylinders are surface treated to ensure minimal fri...

The latest addition to the Ultimate upgrade parts series consists of a selection of hardened CNC crafted airsoft gears, specially engineered for p...

The latest addition to the Ultimate upgrade parts series consists of a selection of hardened CNC crafted airsoft gears, specially engineered for p...

A high quality switch for all v.3 gearboxes. Contact points have a high quality plating to ensure a low inner resistance and minimal heat build-up...

‘Hit hard, hit fast with this market-leading HPA regulator’ One for the hardcore HPA fans out there, the superb Wolverine Storm Category 5 HPA Reg...

This gearbox is cast with high strength materials and is suitable for all low, medium and high power setups. The lining of the casing is surrounde...

Precision CNC manufactured cylinder heads from ULTIMATE. Colour coded for easy recognition, this head is suitable for version 6 gearboxes. Double ...

0High quality air nozzle from ULTIMATE. The AEG listed in the name is a guide only; this nozzle can be used in any gearbox where the required nozz...

High quality air nozzle from ULTIMATE. The AEG listed in the name is a guide only; this nozzle can be used in any gearbox where the required nozzl...

High quality selector plate from ULTIMATE. Incredibly strong construction is highly resistant to flex, breakage and electrical heat build-up. Suit...

High quality air nozzle from ULTIMATE. The AEG listed in the name is a guide only; this nozzle can be used in any gearbox where the required nozzl...

High quality air nozzle from ULTIMATE. The AEG listed in the name is a guide only; this nozzle can be used in any gearbox where the required nozzl...

Constructed from solid steel with an attractive ribbed external finish. These high performance cylinders are surface treated to ensure minimal fri...