it can be seperated by taking out the white rods(see pic)
its pretty good!
ill have it posted with instructions by friday
here it is

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.
http://www.instructables.com/id/Knex_Double_Pistol/
gtg cya
but ill put a box fing there!
hold on
brb
its ROFL
now go on 2nd pic