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Established 2006. Kent's Only Authorised 5.11 Tactical Retailer

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What This Part Is

This is a spring guide for Version 2 airsoft AEG gearboxes, offered from our boneyard as a B-Grade spare. The spring guide anchors the rear of the main spring inside the gearbox shell and keeps it aligned through each compression cycle, so a sound guide is important for consistent shots.

B-Grade Condition Explained

B-Grade means the guide is used, ex-display or salvage. Expect possible cosmetic wear or light marks. It is sold as spares or for repair with no warranty, and we describe it honestly rather than as a pristine new part.

Who It Is For

This suits airsoft technicians and Version 2 gearbox owners building a spares box or completing a budget project. It is a low-cost way to replace a worn or lost guide during a rebuild.

Fitment and Compatibility

It is designed for Version 2 gearboxes but, as a generic salvage part, we cannot promise a specific model match. Compare against your existing guide before fitting. Browse more airsoft accessories for springs and internals.

Need It Fitted?

If a gearbox strip is not your idea of fun, our Kent workshop offers airsoft gun repair and servicing and can fit and test the part for you.

General
BrandBoneyard
Other
GearboxVersion 2 (V2)
ConditionB-Grade (used, ex-display or salvage)
Sold asSpares or for repair
Part typeAEG gearbox spring guide
BearingNon-bearing (standard)
WarrantyNone (boneyard item)

Frequently asked questions

What does a spring guide do?

The spring guide sits at the rear of the gearbox and supports the main spring, keeping it aligned as the piston cycles. This is a Version 2 spring guide offered as a B-Grade spare.

What does B-Grade mean?

It means the guide is used, ex-display or salvage stock. It may show cosmetic wear and is sold as spares or for repair, suiting techs and project builds rather than a new part.

Which gearbox does it fit?

It is designed for Version 2 gearboxes, common in M4, MP5 and similar AEGs. As a salvage part we cannot guarantee a specific model match, so compare against your existing guide first.

Does this one have a bearing?

This listing is for the standard non-bearing spring guide. If you want reduced spring twist, look at our bearing spring guide options instead.

Is there a warranty?

No. Boneyard parts are sold without warranty for repair and project use, where the buyer fits and tests the part themselves.