What parts to upgrade with ?

[pureairsoft11]

Ok i have two seperate questions.

1. What parts do i use to upgrade My warrior L96 On Zeroone theres a choice of Maruzen Aps and Maruzen type 96.

2. Is it worth me getting this for a G&G combat machine http://www.zerooneairsoft.com/produc...oducts_id=6597 Ive always wanted Rails and short barrel for it but i could never find all the parts because on my current barrel the front triangle sight is moulded on so if i got shorter barrel i would have nothing to hold gas block, Trouble is this things only £10 cheaper than what i paid for the whole gun.

Thanks Iain