Lite Rail install -- remove gas block first?

[pneutin]

Hi, I was wondering if it is necessary to remove the gas block before installing the Lite Rail. The reason I ask is, I read Stickman's guide and it seems that you do need to, however this vendor says a newer version makes it possible to leave the gas block on:

http://02b5218.netsolstores.com/danieldefense120literail.aspx

Do all vendors have this same version now, or just Global Tactical?

[spamsammich]

You will have to take ANY gas block off to install this rail as it has a proprietary barrel nut. it fits easily over most low profile gas blocks once you have the barrel nut and lock ring in place.