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Spike · April 22nd, 2013, 22:10

Have a UMG with a weird problem. When the gearbox is by itself, it cycles fine. But once I put it in the lower receiver, it's completely dead. No click, complete electrical failure. Occasionally I'll get one shot as soon as I put it in, but it always stops working again. Works 100% of the time when the gearbox is not in the body.

Nothing appears to be obstructing or pushing on any wires.

Ideas?

April 22nd, 2013, 22:10	#1
Spike Privateer Airsoft Trader rating Join Date: Dec 2008 Location: Beaverbank, NS	G&G UMP doesn't like it's receiver Have a UMG with a weird problem. When the gearbox is by itself, it cycles fine. But once I put it in the lower receiver, it's completely dead. No click, complete electrical failure. Occasionally I'll get one shot as soon as I put it in, but it always stops working again. Works 100% of the time when the gearbox is not in the body. Nothing appears to be obstructing or pushing on any wires. Ideas? __________________ I change primaries like other people change socks.