Custom airsoft AEG with exposed gearbox internals
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Airsoft repair and custom tech, done right.

Working airsoft techs handling AEG repairs, performance upgrades, SSG and DSG builds, and brushless conversions. Every job ships with chrono data and a written build cert.

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Visa · MC · Amex · Apple Pay
Insured UPS & USPS shipping
Build cert with every job
90-day labor warranty

150+

Total builds completed

4 yrs

On the bench

98%

Customer satisfaction

5–14d

Avg. turnaround

What we do

From a quick tune-up to a one-of-one build.

Every service is performed by certified technicians using calibrated equipment and OEM-grade or better components.

Repairs & Diagnostics

Full teardown, fault isolation, and certified repairs on any AEG platform.

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High-Speed SSG Builds

Trigger response under 0.07s with sector-clipped gear sets and tuned MOSFETs.

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DSG Builds

35+ rps with full-cycle reliability. Pre-engagement and AOE precision tuning.

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Brushless Conversions

BLDC retrofits with active braking, programmable curves, and field-proven longevity.

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Compression Overhauls

Cylinder, head, piston, nozzle, and bucking matched for consistent FPS deviation under ±2.

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Featured Builds

Recent work off the bench

Every build ships with chrono data, ROF results, and a digital build certificate.

Gearbox Rebuild & Diagnostics
Repair

Gearbox Rebuild & Diagnostics

V2 internals · Tuned AOE · MOSFET install

Custom AR Build
Custom

Custom AR Build

Custom finish · Carbon outer · Full overhaul

The Process

Transparent from intake to delivery.

01

Request a Quote

Tell us about your replica and goals. We respond within 48 hours.

02

Estimate & Approval

Detailed scope, parts list, and a transparent labor breakdown.

03

Build & QA

Bench-tested, chrono'd, ROF verified — every cycle.

04

Ship with Cert

Tracked shipping plus a signed digital build certificate.

What customers say

Trusted by players, milsim units, and pro teams.

4.9 / 5 · verified customer reviews

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"Isaac built me the best DSG I've ever seen in my years of playing airsoft. The amount of testing, tuning and craftsmanship that went into the gearbox was well worth everything I put into it. Isaac is the only tech I'll have work on my guns."

Matt Ames

DSG Kriss Vector build

"Excellent service, advice, communication, and attention to detail — only the best parts installed with the best work. Tuned to perfection: shoots right at 350 FPS with a deviation of only 0.3 FPS. Lifetime warranty as the cherry on top."

Ben M.

13:1 CQB build

"Sent my CM16 for an accuracy upgrade and general maintenance and they absolutely delivered. Noticeable improvement to accuracy, fantastic communication, and a fantastic price. Highly recommend 6mmCustoms for any tech work."

Michael Powers

G&G CM16 Predator upgrades

Ready to build something serious?

Get a detailed estimate, timeline, and ticket number in under two minutes.

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