AirTac Customs AEG/HPA CRBN Upper

AEG CRBN Upper: Lifetime Warranty for breakage / defects BOTH AEG and HPA Compatible CNC milled Carbon Fiber and ABS Polymer Genuine Carbon Fiber tube Fiber optic front and rear sights for fast target acquisition Dual hopup windows for on-the-fly adjustments Perfected drop-in fitment on a G&G lower with a Maxx hopup Included Fiber Optics Rods (Green and Red) Available in Glossy Black, Matte Black, Red, Blue, Purple, Silver, and Gold tube colors Compatible with: Any V2 AEG Gearbox: SSG, DSG Requires removal of nub (Dremel, File)