From G&G's Parts and Accessories Range we have the HPA Tap for the LevAR Series
The LevAR HPA Tap
This HPA Tap is designed to replace the gas input valve on your LevAR Series RIF to enable you to connector your HPA Power Pack to it. It is a standard Foster-2 or US Foster Male Fitting, constructed from 303 Stainless and pre-fitted with a suitable O-Ring.
Please note, the thread on this item and on the LevAR Series gas input valve is a Left-Hand Thread or CCW Thread (Like most muzzle devices) so please take care when removing the original valve and fitting this item.
Features
CNC Machined 303 Stainless
Direct Factory Replacement - No Modifications Needed
Pre-Installed M1.0x8.0 70ShA O-Ring