Gen 3, using Nuprol 2.0 with the metal nozzle.
Stock except BavTac 140% return nozzle springs
Yeah, first time running it since I got it 4 odd months ago
When I filled the mags at home they was weighing in at 460 - 465g (No BB's) and after the first time all 4 mags did what they did, I purged them all and ran into the same issue afterwards