This gun is Alingarhs Mx8/FN scar. I really like it so i built it and made modifications. The mods is the barrel, stock, front hand grip, sight, and a mini grenade launcher. Great accuracy. If u like the gun then plz try my mods you will see its really cool. So ya i hope you enjoy. And this is the site for the original gun; http://instructables.com/id/XM8--FN-SCAR-Knex-Gun/ ok plz rate my instructable ty. _Undermig_
Step 1: Stock
Its just longer...
Step 2: Hand Grip With Grenade Launcher.
You can put 2 grenade launcher each side but i like more 1 side for thum. Sry for flash...
Step 3: Back Sight
Sry but its writed cool gun and i cant delete it...
Step 4: 2 Front Sight+ the Barrel Extention
Make the barrel longer=more accurate. I think u can continue the barrel with the orange connecters but i don t know if its the same distance. But it still goes well. Good shoots.
Step 5: Together
Just add the piece like in the photos.