Ok I will give a mini review of the Bul M5.
The Bul M5 is a double stack polymer framed 1911. IIRC it has an 18 round capacity for those living in places where you can. Mags are stainless steel and the ones I tried were in fact Sti mags.
It shoots very nice and is very accurate. The trigger is nice even though it is polymer, and it was quite controllable to shoot despite not having a full length dust cover.
Ergonomically it felt great in my hands and was pleasant to shoot. Mag release is standard, and you can get different mag wells for it. Also I had no technical issues when I fired it.
So overall I would say that it is a fantastic buy for $699. In terms of fit and finish I would say that they are in the Para Ordnance league, although the STI/SVI series are probably of a better quality. However most shooters will not notice enough of a difference to justify jumping to one of the other 1911's, and there are many competitive IPSC shooters who use them.
Also, I have also handled an M5 with a black polymer frame and a stainless slide. It is one of the ###iest looking 1911's I have ever seen!
NOTE: I have only test fired the expensive IPSC model, but I would not anticipate an enormous drop in quality when talking about the standard series.