New gun project need tec's for part info

[HarbingerOTime]

Alright if you watch the show Sons of Guns then you have probably seen this gun, I just started watching the show today and after I saw it I had to have an airsoft model.



It's a Chicago typewriter that the sheriff wanted them to mod for his SWAT team to use.

Now things I need to know are.
What mods can I do to the GB to add a lot of ROF fps isn't a big deal
Idea's for mounting a rail system and a good rail system
This is the one I will be buying and I'm gonna get it brand new http://www.evike.com/product_info.php?cPath=21_44_486&products_id=31396

Any other ideas or thoughts please let me know and yes I am aware this project won't be cheap which is why I am waiting till the beginning of the year to start I am also aware this gun will have some wight to it

[cloakndagger]

First off, ditch the king arms!! Get a cyma gun which will afford everything you need a lot cheaper. As for parts, the front end can be a modded m4 ris system, given that you will already have two screw holes where the original grip will come off, the attachment should be relatively easy.  Next, you can get individual ris accessory rails, and mounting the rear sight one would simply be a matter of drilling two holes, tapping them and screwing it down. On to paint, roughen the furniture and go with black spray on diy bedliner. Finaly the rof thing... take into account that your drum mag will only hold 400 rounds if my memory serves me.  If it were me id go with a) cheap route- bigger batt and weaker spring OR b) correct route- high speed gears and motor, large batt. You could fit quite a large batt in the stock with some modification, or put it on a stretch cord in a vest pocket and do away with the stock.