Specna Arms CORE™ Gearbox V2 Frame for AR15

The Specna Arms CORE™ Gearbox V2 Frame for AR15 is an original replacement gearbox shell for Specna Arms CORE™ AR15 AEG replicas. This metal V2 gearbox housing is designed as a durable base for maintenance, repair or a complete gearbox rebuild and is fully compatible with the ESA™ Quick Spring Change System.

As an original Specna Arms spare part, this gearbox shell offers the same quality and fit as the parts fitted to the replicas at the factory.

Robust metal V2 gearbox

The gearbox shell is made from durable metal and provides a sturdy base for all internal gearbox components. Thanks to its robust construction, the housing is suitable for intensive use and is a reliable choice for both repairs and upgrades.

The integrated ESA™ quick spring change system makes it easier to replace the main spring, making maintenance and adjusting the spring rate considerably quicker.

Includes 8 mm bearings

The gearbox comes with a complete set of 8 mm bearings, which allow the gears to turn smoothly and reduce wear. This contributes to the efficient operation of the gearbox and extends the service life of its internal components.

As an original Specna Arms part, the gearbox fits perfectly on compatible CORE™ AR15 replicas.

Practical insights

An original gearbox shell is often the best choice when an existing gearbox is damaged or when you want to build a new gearbox to original tolerances. Thanks to its ESA™ compatibility, this gearbox is also an attractive option for players who regularly change spring strengths to comply with different field limits.

Who is the Specna Arms CORE™ Gearbox V2 Frame suitable for?

The Specna Arms CORE™ Gearbox V2 Frame for AR15 is ideal for gunsmiths, airsoft technicians and players who wish to repair or upgrade a Specna Arms CORE™ AR15 AEG using a high-quality, original gearbox housing.

Key features

• Genuine Specna Arms spare part
• Suitable for Specna Arms CORE™ AR15 AEG replicas
• Gearbox Version 2 (V2)
• Sustainable metal gearbox shell
• Compatible with the ESA™ Quick Spring Change System
• Includes a set of 8 mm bearings
• Ideal for repairs or gearbox assembly
• Weight: approximately 295 grams

Common mistakes

• Please check beforehand whether your replica uses a V2 gearbox and is compatible with the ESA™ system.
• When fitting, use high-quality gearbox shims and grease to ensure optimum performance and service life.

Frequently Asked Questions

Which replicas is this gearbox suitable for?
This gearbox shell is designed for Specna Arms CORE™ AR15 AEG replicas.

Is this a complete gearbox?
No. This is the gearbox housing (gearbox shell), including 8 mm bearings.

Does this gearbox support the ESA™ system?
Yes. The gearbox is fully compatible with the ESA™ Quick Spring Change System.

Are bearings included?
Yes. The set includes a complete set of 8 mm bearings.

Is this an original Specna Arms part?
Yes. This is an Original Spare Part from Specna Arms, of the same quality as the parts used in the factory.

Restore or upgrade your replica with the Specna Arms CORE™ Gearbox V2 Frame for AR15 and benefit from an original metal gearbox housing with ESA™ compatibility and a perfect fit for your CORE™ AR15.