Cold weather is always a problem in using gas blowbacks and the Middle Age Gamer tries the Prow XM7 GBBR if it can perform in low temperatures... "This is the Prow XM7/M7 Cold Weather Test, a simple Mag Dump on Fun to see if it can clear a Mag in Temperatures around -1.5C. Most GBBRS do not like the cold and struggle to clear a single mag as soon as temps hit low single numbers, so lets put this to the test."