fixing an EOTech

[foxracing29]

hey guys,i was wondering,when you fix an EOTech on the top of the picatiny rail(AR-15) wich screw are you using? the small one(hallen key) or the big one??? and why one and not the other? both came with the sight.

 

[Shelldrake]

hey guys,i was wondering,when you fix an EOTech on the top of the picatiny rail(AR-15) wich screw are you using? the small one(hallen key) or the big one??? and why one and not the other? both came with the sight.

I use the small one. Just preference. The bigger one doesn't need tools, which makes it more convenient if you take it on and off a lot.