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Hello all, I have been doing reading for a while on how to build an AB mosfet and attempted to build one the other night and got it working until there was some catastrophic failure (and foolishness on my part) that resulted in a non working gun, a smouldering mess and my missing the first chance at a game in 6 weeks. (aren't your curious now
)
Let me start with a parts list of what I was using:
1. N-channel mosfet http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=618089&catalogId=10001&freeText=618089&app.products.maxperpage=15&storeId=10001&search_type=jamecoall&ddkey=http:StoreCatalogDrillDownView
2. P-channel mosfet http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=1559851&catalogId=10001&freeText=1559851&app.products.maxperpage=15&storeId=10001&search_type=jamecoall&ddkey=http:StoreCatalogDrillDownView
3. 100 Ohm .25W resistor
4. 2.2k Ohm .25W resistor
5. Anderson Power Pole plugs http://www.andersonpower.com/products/singlepole-connectors.html
6. A whole bunch of 16gua wire
I started researching and ultimately just did it using this diagram as a reference:
Now, the problems...
1. Once I wired it up it would shoot... when it felt like it. I could get off a few shots on semi and short bursts on auto, but after about 20-30 shots it would just stop all together. Am I safe to assume that since it worked I wired the Mosfet correctly? and that the result of it not working is possibly from a bad connection or inadequate parts somewhere?
2. I foolishly left the battery connected when I ran out to work after realizing that I had spent way too long trying to get it to work, and when I got home, I looked at it again and realized that the mosfet unit itself had... frankly disintegrated from over heating. The terminals had desoldered themselves and one of the mosfets had turned to dust and the whole thing melted the heat shrink that it was in and left a sizable hole in my neoprene pad that was under it (thankfully it was under it or it could have been a lot worse). What could potentially have been the cause for this? or are mosfets supposed to run power when the gun is on safe "off" since the contacts are open (since mosfets essentially create a parallel circut). Also could this have been a result of not pairing the P and N channels properly? I looked at many many forums and people that have done this, and found no information on properly pairing the P and N to create an AB unit, so I just went with something as close as I could find from a guide that I found.
Any help would be greatly appreciated :-/

Let me start with a parts list of what I was using:
1. N-channel mosfet http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=618089&catalogId=10001&freeText=618089&app.products.maxperpage=15&storeId=10001&search_type=jamecoall&ddkey=http:StoreCatalogDrillDownView
2. P-channel mosfet http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=1559851&catalogId=10001&freeText=1559851&app.products.maxperpage=15&storeId=10001&search_type=jamecoall&ddkey=http:StoreCatalogDrillDownView
3. 100 Ohm .25W resistor
4. 2.2k Ohm .25W resistor
5. Anderson Power Pole plugs http://www.andersonpower.com/products/singlepole-connectors.html
6. A whole bunch of 16gua wire
I started researching and ultimately just did it using this diagram as a reference:

Now, the problems...
1. Once I wired it up it would shoot... when it felt like it. I could get off a few shots on semi and short bursts on auto, but after about 20-30 shots it would just stop all together. Am I safe to assume that since it worked I wired the Mosfet correctly? and that the result of it not working is possibly from a bad connection or inadequate parts somewhere?
2. I foolishly left the battery connected when I ran out to work after realizing that I had spent way too long trying to get it to work, and when I got home, I looked at it again and realized that the mosfet unit itself had... frankly disintegrated from over heating. The terminals had desoldered themselves and one of the mosfets had turned to dust and the whole thing melted the heat shrink that it was in and left a sizable hole in my neoprene pad that was under it (thankfully it was under it or it could have been a lot worse). What could potentially have been the cause for this? or are mosfets supposed to run power when the gun is on safe "off" since the contacts are open (since mosfets essentially create a parallel circut). Also could this have been a result of not pairing the P and N channels properly? I looked at many many forums and people that have done this, and found no information on properly pairing the P and N to create an AB unit, so I just went with something as close as I could find from a guide that I found.
Any help would be greatly appreciated :-/