Profiles for Various Railed Handguards

[Dionysusigma]

I came across this picture yesterday showing cross-sections of different rails, and helped me out a lot with my admittedly-chronic hemming and hawing to figure out what direction I want to go for my builds.

http://m4carbine.net/attachment.php?attachmentid=12779&stc=1&d=1341799014

What I'm wondering is this: does anyone have any more? Especially more popular ones like the Centurion rails, KAC URX, Troy series, Noveske NSR, and so on - the dimensions of the fore end dictate a lot, from basic ergonomics to what accessories can be mounted, and where.

[jaxman7]

http://www.tacticalyellowvisor.net/charts/free-float-rails

[justin_247]

I came across this picture yesterday showing cross-sections of different rails, and helped me out a lot with my admittedly-chronic hemming and hawing to figure out what direction I want to go for my builds.

http://m4carbine.net/attachment.php?attachmentid=12779&stc=1&d=1341799014

What I'm wondering is this: does anyone have any more? Especially more popular ones like the Centurion rails, KAC URX, Troy series, Noveske NSR, and so on - the dimensions of the fore end dictate a lot, from basic ergonomics to what accessories can be mounted, and where.

This diagram was produced by Daniel Defense, and I don't know of any other manufacturers who have made one.

The chart from TacticalYellowVisor is your best best.