K'NEX Magazine Comparisons - 5.56 NATO, STANAG Magazine Answered
On thing that makes any K'NEX gun replica more accurate is the magazine. Trust me, if your magazine is to big or to small, it will make the whole gun look bad. As this is the case, I decided to "clear up" the small argument about the size of 5.56 NATO magazines, as some people are incorrect on the size of K'NEX magazine that they use.
As you see in the pictures below, TD's magazine (yellow connecter - white rod - yellow connecter) is more accurate than the other type (white connecter - green rod - white connecter). The latter version (white connecter - green rod - white connecter) is quite a few centimeters too long, and is more accurate for some 7.62x51 replica K'NEX guns.
The last pic is of my Dad's Bushmaster Carbon 15.
-The Red Book of Westmarch