AirTac Customs AEG/HPA CRBN Upper sniper Very solid and feels great

Very solid and feels great

BBs bullet full load indicator

Western Arms and other compatible M4/M16 GBB Airsoft rifles

Double O-Ring Air Seal Type

AirTac Customs AEG/HPA CRBN Upper sniper Very solid and feels greatAEG 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