Airsoft Canada - View Single Post - Puzzled over my ICS Sig 551 miss feeding?

Shocktr00per · April 1st, 2012, 23:47

I have a similar problem, but I have yet to test whether turning the gun ud will correct the issue. Please forgive my n00b post, as I just switched from paintball and tippmans to Airsoft.

I purchased my ICS 552 used, but in great conditions. The gun has probably fired about 10,000 rnds, no more. It worked perfectly with a Nunchuck 9.6V battery, but I had to tape it under the handguard which was ugly and uncomfortable. Lately, it misfired a little. Once every 100 rnds perhaps.

Got a triple cell 11.1 12C Li-Po for it a month ago (only 3ple cell available since the FoxConn factory fire). The ROF went through the roof, WHEN IT ACTUALLY SPITS A BB. It will sometimes spit 15 bbs, and then misfire a whole lot. Winding up the mag a LOT when it does that sometimes improves the feeding. Sometimes it doesn't.

I only have the original HiCap mags. If I slide the output tab whilst wound, both will spit out half the staged bb's. I do not know it this is OK or less than optimal.

Last night I opened the gearbox, and all the metal gears seemed to be teethed right, with little or no detectable wear. I did notice there were no bushings, just washers, which seems to be by design. There was little grease on them so I added just a bit of vaseline to the gear teeth, and some silicon lube. Then squeezed a 2 second full auto burst, and it fired ok.

Today, went to the field with both batteries in, and the next Li-Po burst was a dud. Misfired half or more of the shots. The 9.6 fired much slower, and much more reliably.

I've read that the ICS stock mags are crap, and I should get me a MAG or TM mags, file them down, and try them on.

Before I go an order some mags, does this sound like a mag problem to anyone please?

Thanks in advance for any helpful replies.

April 1st, 2012, 23:47	#21
Shocktr00per Trader rating Join Date: Apr 2012 Location: USA	I have a similar problem, but I have yet to test whether turning the gun ud will correct the issue. Please forgive my n00b post, as I just switched from paintball and tippmans to Airsoft. I purchased my ICS 552 used, but in great conditions. The gun has probably fired about 10,000 rnds, no more. It worked perfectly with a Nunchuck 9.6V battery, but I had to tape it under the handguard which was ugly and uncomfortable. Lately, it misfired a little. Once every 100 rnds perhaps. Got a triple cell 11.1 12C Li-Po for it a month ago (only 3ple cell available since the FoxConn factory fire). The ROF went through the roof, WHEN IT ACTUALLY SPITS A BB. It will sometimes spit 15 bbs, and then misfire a whole lot. Winding up the mag a LOT when it does that sometimes improves the feeding. Sometimes it doesn't. I only have the original HiCap mags. If I slide the output tab whilst wound, both will spit out half the staged bb's. I do not know it this is OK or less than optimal. Last night I opened the gearbox, and all the metal gears seemed to be teethed right, with little or no detectable wear. I did notice there were no bushings, just washers, which seems to be by design. There was little grease on them so I added just a bit of vaseline to the gear teeth, and some silicon lube. Then squeezed a 2 second full auto burst, and it fired ok. Today, went to the field with both batteries in, and the next Li-Po burst was a dud. Misfired half or more of the shots. The 9.6 fired much slower, and much more reliably. I've read that the ICS stock mags are crap, and I should get me a MAG or TM mags, file them down, and try them on. Before I go an order some mags, does this sound like a mag problem to anyone please? Thanks in advance for any helpful replies.