The 5KU Blowback Unit is a Aluminum Lightweight blowback unit designed to be a replacement for the Action Army AAP-01 GBB pistols. This blowback unit is much more durable and lighter compared to the original polymer BBU, which will allow for much faster cycling.

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Compatibility:

Action Army AAP-01 Airsoft Gas Pistol

Includes:

x1 5KU Action Army AAP 01 GBB Airsoft Lightweight Blowback Unit (BBU, CNC Aluminum) - Green

Specifications

Specifications
Country of Manufacture	China
Color	Green
Brand	5KU
Originating Armory	RUGER
Model	G SERIES
Platform	GAS
Replica Type	PISTOL
Net Weight (kg)	0.04
Length (mm)	90.0
Material	Metal
Content Included	5KU Action Army AAP 01 GBB Airsoft Lightweight Blowback Unit (BBU, CNC Aluminum) - Green