Venting On / Off HPA ASA Adapter - Style 1 / Black

Does exactly what it’s supposed to. Only complaint is that when attached to the tank, it only seals with one O-ring. Therefore, tanks such as the HK Army alpha air which have 2 o rings to guarantee a better seal, its only going to seal to the upper most O-ring on the stem. Other than that, product works perfect. Its a bit tall, i want to say between an inch and a half or two inches, but the quality of life it brings certainly makes you forget about that. Definitely like this version better than the locking ring version.