It has unique LA Capa markings

The ULTIMATE® Upgrade Series cylinder head have been CNC manufactured in machine-aluminium and thereafter anodized with a colour code for easy recognition

△ Dimensions: length 139

integrated cheek rest and adjustable length of pull

Double O-Ring for better air seal and reduced compression loss

Primary Airsoft GLOCK/AAP-01 HPA M4 ADAPTER Krytac It has unique LA CapaOur 4th generation Glock M4 adapter is injection molded from a strong glass reinforced nylon material. The magazine release is now CNC machined aluminum for all Gen4 Primary Airsoft adapters. This adapter allows you to use HPA (high pressure air) and M4 AEG magazines on your Glock airsoft pistol. To use it you will also need an M4 AEG magazine, paintball tank with low pressure regulator (0 140) psi, a hose with a Foster (polarstar) quick disconnect