The hosting costs of websites on this system have historically been covered by advertising. However changes in the way people use the internet, including ad-blocking mean that the revenues no longer cover the expenses. For this reason we will be closing this website within the next two months unless we can find a different model. If any users of the site would be interested in the possibility of taking this incredible archive or pictures and comments over including paying for hosting, please
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Generally speaking, when you see a "Quad 50", you automatically think M16 or M16A1 HT. This is not the case in all instances, as there are some very limited M2's, M3's running around with Quad 50's on them.
Added by Timespanr on 27 February 2012.