The ATC x MAC CRBN Gearbox is Here!
In partnership with MAC, known for their receivers, barrels, and gearboxes, we're releasing a huge batch of CRBN gearboxes for your CRBN Uppers! (CRBN Gen 2 coming Christmas)
This CRBN Gearbox allows 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 Wolverine and Redline engines!
Expand the capability of your CRBN upper builds with an AirTac Customs CRBN Gearbox!
This AirTac Customs CRBN Gearbox includes:
AirTac Customs CRBN Gearbox:
- Machine milled to perfection
- Included centering grub screws for HPA engine
- Gearbox screws for both halves
- Matte black finish
- Allows compatibility of a CRBN Upper with any drop-in HPA engine
- Does not include selector plate or trigger board screw
Compatible with:
- [CRBN] G&G-style V2 Lowers (SSG1, ARP9, SSG556, etc)
- Any other V2 lower, upper, and grip.
United Statessmooth, great quality, no messing around
quality of the gearbox is great, just perfect for my polarstar build. adjusting things was easy and placement fit just right. the window made instaling the end cap much easier haha but also it kept nice and aligned with the airtac upper. definitely must have
United StatesPerfect fit
This gearbox is perfect for any application. Very well made. Easy install. I own 3 of them now!
United StatesThe best
Worked with my airtac upper perfectly that I bought at the same time. Whole set up shoots Lazer beams, literally. Highly recommend and the staff is knowledgeable and kind. This is the setup to have with Airtac parts for the new season.
United StatesNice
I love this gearbox as it is easy to install and it makes the install of the CRBN upper much easier.
United States10 out of 10
there carbon uppers and the gearbox make your gun 10x lighter