88g Co2 Air Saver Cartridge Thread Adapter 90g CAPSULE AIR GUN RIFLE M16 x 1.5mm
88g / 90g one way air saver valve. Internal thread ~ M16 x 1.5. External thread ~ M16 x 1.5. CO2 SAVER ADAPTER. Aluminium construction with brass valve pin. Weight ~ 30 grams.