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This CRBN Gearbox enables you to use a CRBN Upper with ANY V2 airsoft replica engine system! It's now possible to use Polarstar drop-in engines such as the F2, F1, and Jack in your build, as well as the Gate Pulsar!
This Gen 3 Skeletonized version is lighter than ever before!
This AirTac Customs CRBN Gearbox includes:
AirTac Customs Gen 3 CRBN Gearbox:
Skeletonized Lightweight Design
7 Brand New Cerakote Colors!
Machine milled to perfection
Included Gate Pulsar Spacers
Included Trigger Board Screw
Upgraded Dual Tensioning grub screws to eliminate engine wobble
Gearbox screws for both halves
Allows compatibility of a CRBN Upper with any drop-in HPA engine
Does not include selector plate
Compatible with:
[CRBN] G&G-style V2 Lowers (SSG1, ARP9, SSG556, etc)
Any other V2 lower, upper, and grip.
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