Rail Size Verification, Help!

[iMac]

I got a 14.5 BCM middy upper with a low-pro troy gas block. I'm trying to figure out which rail size will cover the gas block completely or at least most of it. I want to keep the rail as short as possible, not a fan of huge rails. Have googled the topic multiple times with little success. Thanks

 

[tradertator]

I got a 14.5 BCM middy upper with a low-pro troy gas block. I'm trying to figure out which rail size will cover the gas block completely or at least most of it. I want to keep the rail as short as possible, not a fan of huge rails. Have googled the topic multiple times with little success. Thanks

Standard handgaurd is going to be 7", so you'll need to go longer. 9 or 10" should work.

 

[iMac]

It had a 9" on it that I took off and sold because its too short. I'd really like to get a 10" I was just hoping someone with that setup might chime in.

 

[esrice]

You'll need a 10" rail.

 

[shooter521]

You'll need a 10" rail.

With a mid-length gas system, a 10" rail will leave the very front of the gas block peeking out from underneath; an 11" or longer will cover it completely. I've got both configurations sitting here in front of me.

 

[esrice]

With a mid-length gas system,

Oh yeah, he did say "middy", didn't he. . .

 

[tradertator]

Haha, everyone's screwing up in this thread. Misread your post and thought you said carbine. Definitely need an 11".

 

[jblomenberg16]

If you're gonna go 11...might as well go 13 and leave just the tip of the bbl and flash hider / comp exposed and give yourselve the longer sight radius.

 

[iMac]

With a mid-length gas system, a 10" rail will leave the very front of the gas block peeking out from underneath; an 11" or longer will cover it completely. I've got both configurations sitting here in front of me.

Exactly what I needed , thank you very much sir!

 

[Amattern]

Here is what the 10"rail will look like. As you can see behind my light about half of the gas block is still exposed.

So if you are wanting the gas block completely covered like others have said you would want to bump up to the 11" rail system.

 

[iMac]

Thank you for that picture, I'm probably going to go with the 10". Got a buddy that does laser engraving so i will probably do a little something on the gas block.