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Fenton · May 17th, 2012, 09:45

I just bought a new M4 that came with a 120 round mag (no markings on it) and it wouldn't take more than 75 bb's. I shot a short burst of silicone down the port and used a straw to work the spring and now 120 bb's load like butter.

May 17th, 2012, 09:45	#12
Fenton Trader rating Join Date: May 2012 Location: Nanaimo, Vancouver Island	I just bought a new M4 that came with a 120 round mag (no markings on it) and it wouldn't take more than 75 bb's. I shot a short burst of silicone down the port and used a straw to work the spring and now 120 bb's load like butter.