What is your favorite length for an AR15 handguard and why?

[Emptymag]

I only own one AR and don't really plan on getting more. A basic DelTon carbine, A2 upper, light A1 profile 16" barrel. I'm a traditionalist, so I guess for me it would be a standard slim CAR handguard on a 14.5" barrel. (gotta get mine trimmed and welded)

Or a standard rifle handguard on a 20" rifle barrel. Round or triangle depending on how retro I'm feeling.

Not a fan of rails. I don't like to hang a bunch of crap off my gun. Alot cheaper and easier to just install a flashlight with a barrel or gasblock clamp. No sense installing a $100+ rail system just to clip a flashlight to it. And rail covers, to cover all that useless rail you just spent money on. But to each their own ofcourse. I like to keep it old school. For the most part, my AR is just a range toy anyway.

News flash. Nobody buys "rails" any more.
That trend is long gone.

[SgtRecon]

20" barrel A1 with smooth full length triangles for me, regrettably there was a time in my life decades ago I slept with one of these more than with women. It just feels familiar and correct to me