This cosmetic kit for the BK1S/BK2S is designed to create an AK47 feel for the blaster without exactly copying its proportions. the games i play in discourage real steel silhouettes so i tried to make it a little more stylized while still having the same feel.
 

Hardware requirements are minimal, a couple of 20 mm or so M5 bolts. One for the swivel on the stock and one to secure the barrel (i just used the one that came with the original barrel shroud) with a nut to secure it. Also the ridges on the stock are for using a wrap or cord to tie in place to change the stock length, but i like to keep mine super short.

note that there are two end bits for the barrel, the shorter one leaves room for A SCAR, and the second one looks cooler imo, but leaves no room for a SCAR :( A longer barrel would fix this i guess, but i like the performance as is.