Will a two peice quad rail hold zero?

[repoman1984]

I have pistol AR in 9mm in the works. Its a low budget build if I get a 2 peice quad rail, will that rail hold zero? I plan on keeping a front sight post and a red dot on the upper directly but, I'm thinking light/lazer combo on the bottom rail. Is my lazer going to hold zero?

[jfifer]

Most likely it wont.

[kcstott]

Lasers are used for close range. So you could duct tape a laser on and it would be fine. Optics should alway be mounted to the receiver Lasers are "For reference only" if you will. they are just there to say yep i can hit that . They are not meant to be a POA POI device especially when mounted anywhere other then vertical with the line of sight.