Originally Posted by indyfan
I just thought the 10.0 rail covers up the low profile gas block on a carbine gas system.
I wanna have flip sights and a front sight post will be too distracting with the Eotech 522 I'm getting.
Is there a difference in accuracy or function between the Carbine length gas system and the Mid-Length gas system?
Do you already have a 10" rail and are wanting to use it? If you have to purchase a new rail Id suggest A VTAC or Troy Extreme. Both very very light weight and the Troy being the lighter of the two. As w/ many other things in life longer is better when it comes to rails. It allows a longer sight radious and makes it possible to get your support hand as far out as possible aiding in the overall control of your rifle. Contact Roy at http://www.weaponoutfitters.com/collections/rail-systems
. He has the Troys and VTACs in stock. He also has great prices and scary fast shipping.
I have run a F marked FSB on a couple ARs w/ red dots, Aimpoints and EoTechs, and have never had a problem with being distracted by the FSB. When putting the dot on target you shuld have both eyes open and your eyes should be focused downrange. This along w/ many other pluses will do away w/ the FSB shadowing.
As far as accuracy I wouldnt say there is a difference. I must say I really like my 14.5s. My LWRC is an extrodinary rifle and its a carbine however IMO midlengths have more potential. Ive owned both and both have been fairly equal in accuracy. Many feel a carbine is harder on internal parts. Id have to agree.
If your dead set on a certain set-up and dont plan on changing it anytime in the future go 14.5 w/ perm. FH. If you change your mind often and dont see yourself purchasing a new rifle to fill your current desires go 16".
Originally Posted by Quentin
Do a little reading/research and I think you'll agree the midlength is superior for 16". Now if you're going 14.5" then there's a good argument for carbine length gas.
Midlength all the way