The newest generation of the CRBN Upper is here!
CRBN Uppers are a sleek way to turn any build into a lightweight beast, made with genuine carbon fiber for strength and durability.
The Gen 3 has been upgraded to include dual hopup windows, fiber-optic back sights, perfect fitment, and updated threads. Plus, a reduced price to increase accessibility!
All uppers are cross-compatible, so you can swap your tubes and parts between any of your CRBN uppers!
This Gen 3 CRBN Upper Includes:
Gen. 3 CRBN Upper:
The Gen 3 ATC x MAC CRBN Gearbox is Here!
Has perfect fitment with the F2 Polarstar , Maxx mag release, and allows you to store your FCU and Battery in your gearbox.
Expand the capability of your CRBN upper builds with an AirTac Customs CRBN Gearbox!
This AirTac Customs CRBN Gearbox includes:
AirTac Customs CRBN Gearbox:
This AirTac Customs Aluminum Endcap includes:
AirTac Customs Aluminum Endcap:
We changed the game with our colorful CRBN uppers, but now it's time to customize the rest of the gun. Welcome to AirTac Customs' next generation of aluminum rifle parts!
The Shard Mag Release is our upgraded ambidextrous mag release - it has reliable right-side action and buttery smooth ambi. The large surface area design and strong springs ensure reliable reloads while providing a beautiful CNC accent!
Give your rifle some color with the new AirTac Shard Mag Release!
This AirTac Customs Shard Mag Release Features:
"Shard" M4 Mag Release: