Me and a friend was talking about the realism of some guns. the more realistic it is the more expensive it is. he brought to my attention a http://www.airsplat.com/Items/ER-CTW-M4A1.htmthat is about as realistic m4 as it gets besides systema. when i saw that it was 750.00 and there's still some upgrades he wants to do with it, i thought it would be too much money. also many parts are Celsius specific like the cylinder and mags. so tell me what y'all think. you you want a realistic gun or a maxed out standard gun + probably more for the same price?