Hello,
Long time lurker here. After ploughing through the last 45 pages I thought I d add my 2c.
I bought a WA M4 CQB last week and have enough time to play around so here’s what I think it so far.
So much has been covered already Ill try not to repeat.
When I first got it I only had propane handy. I left the gun for a day waiting for HFC but could not resist and filled the mag up, an immediate hissing sound from top valve. That was a worrying start. I put the mag in and fired off all its contents anyway.
This leak did not affect immediate performance.
Say whatever yo