Explosive Enterprises got to comprehensively review the recently released Northeast Airsoft MP2A1 Uzi Gas Blowback SMG and they touch on upgrades as well as fixes to issues found... "Today we're taking a look at Northeast Airsoft's newest GBB product and their first design beyond Sten variants- a gas blowback MP2A1, known more colloquially as the Uzi. This airsoft gun has some issues out of the box, so while we go through reviewing the gun itself we also talk about some of the fixes."