GBBR Drum magazine?

[No1_sonuk]

Re: GBBR Drum magazine?

However saying that, having three co2bulbs would be an advantage as you could develop a method of alternating between each bulb dependant on its pressure. So say if you had fired 40rounds and bulb one was getting low, the mag could knock over to bulb two which would not have suffered cool down yet and fire off another 40rounds.

The advantage of CO2 is that the pressure is constant until the liquid runs out, and cool-down has far less of an effect.