AirTac Customs x MAC CRBN Gearbox
AirTac Customs x MAC CRBN Gearbox
AirTac Customs x MAC CRBN Gearbox

AirTac Customs x MAC CRBN Gearbox

Regular price$84.99
Shipping calculated at checkout.

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:

  • 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.

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Amazing people, I bought a awesome rifle CM16 Raider Black and a 1911 .45 STI, both are incredible weapons. Tom was a spectacular salesman and show me all that I wanted to see, so he explained to me everything about the weapons and help me so much in a choice. On the final I’ve been gain a one free admission. Thanks Extreme Airsoft.

Augosto C.
Rhode Island

Still remains to be the best field in New England. Great selection at the pro shop. They also have online shopping with shipping and store pick up options available. Great admission price and large adaptable field. Perfect for experienced and new players with rental packages available. Unfortunately I wish they have more weekday games available as they are usually only open to airsoft session on weekends but the store will still remain open for your shopping needs. Not to mention they fix and buy used airsoft guns.

James R.
Warwick, RI

Very nice staff, had everything I needed. I would definitely recommend this place to any airsoft players. They have a great field, and overall a great community. They gave advice as what direction to head next with some of my guns and helped me fix issues with my arp9. They had everything I needed in stock for the arp9 and my other guns. Recommend 6/5 stars.

That Random Airsofter

Hands down I just want to shout out this company for getting my product to me in the most speediest time I've ever ordered something I called them personally told him I issue told him I needed it within three days they had it to me literally within 20-something hours great staff great product

Mike D.
Plymouth, MA