I am too a com bloc fan but I do own a nice mixmaster ar 15 built from parts I've accumulated. I am a very big fan of the israeli version of the there carbine. Look tough built tough with a unique retro style a classic example of taking what you have and developing it into a good weapon system.
http://www.ar15.com/forums/t_1_5/602...ad.html&page=2
A good thread on pics of IDF AR platforms