need pros/cons of going to 9" or 12" rail

[mag360]

on my 16 midlength carbine I want to add a rail so I can put a small light and angled fore grip on it. If I go longer than 9" I will need to spend extra money on a low pro gas block and a flip up sight.

I already have a GG&G rear flip up sight and use my front A2 but don't like their fronts too much so I wouldn't mind just getting some cheap mbus.

I'll be using an acog ta33r8 if it matters.

[peter95]

depends on which rails you get, but assuming you are sticking with the same company rails.

-Shorter rail will obviously be lighter.
-longer rail will have longer sight radius for more accurate aiming and alignment.
-For some people, holding on to the rail more forwards can be more comfortable than holding it too close. Also faster movement when holding it forward.
-Can fit more things on to the rail that is longer? but if you add too much, it'll be too heavy so up to you.

[PSH78]

I would try to go into a shop and see if you can hold both lengths and see which is more comfortable for you if that is your main factor. If you're not worried about weight, just get the 12".

[sirsloth]

You can always shave your FSP if you decide on a 12" rail.

[Droppin Deuces]

You just get a rail that wraps around the front sight.

http://www.centurionarms.com/index.php?option=com_virtuemart&Itemid=179

[walletclan]

I am in the same predicament. I have a mid-length handguard with FSB. I am looking at the C4 rail with the notch for the FSB, which is a very nice rail. Or I can get the rail just up to the FSB or the rail that past the FSB and provides rail in front of the FSB.

I am leaning towards the Daniel Defense Omega X rail. Check it out. It feels very nice and solid. Scroll down on their site : http://www.riflegear.com/c-24-free-float-forearms.aspx

[Striker]

You just get a rail that wraps around the front sight.

http://www.centurionarms.com/index.p...art&Itemid=179

This or the Daniel Defense RIS II FSP Rail or the Daniel Defense Omega X FSP Rail if you want a longer rail. Depends on you, what you want to mount on the gun, where you want to mount it and where you like to place support hand when running it.

With a longer rail you'll be able to get your support hand further out on the gun, which aids in control of the weapon during fire. Also with the DD rails you can mount your light right in front of the FSP, which some of elite trainers really like. And there's the obvious of having more rail space, which means more options on where to mount things.

Either way, I personally, would stick with the FSP. I'm not sure you gain any advantages with a rail mounted front site unless you want to fold it down when it's not in use.

Hope that's helpful.

[Sicarius]

Longer sight radius lends itself have more potential accuracy if you go with the longer rail and rail mounted sight. Also adds weight too. You have more realestate to put more stuff on and farther towards the muzzle. Say you have a flashlight, you will get less shadow the further out. You have more grip options depending on what tactical stance you use.
Kevin