13 inch rail and rifle length gas system. - Page 1

AR-15 » Build It Yourself

AR Sponsor:

Site Notices

[ARCHIVED THREAD] - 13 inch rail and rifle length gas system.

Posted: 1/7/2019 10:06:38 AM EDT

I am looking at my collection of parts and I have a 13 inch free float rail and a rifle length gas system barrel. A quick trial fit shows about 1/2 of the gas block will be out in front of the rail. Any issues otherwise?

Posted: 1/7/2019 10:13:21 AM EDT

[#1]

Attached File

Nope, I have two like that.

Posted: 1/7/2019 10:26:27 AM EDT

[#2]

Quoted:
I am looking at my collection of parts and I have a 13 inch free float rail and a rifle length gas system barrel. A quick trial fit shows about 1/2 of the gas block will be out in front of the rail. Any issues otherwise?

View Quote

I expect dimple of the barrel for the gas block setscrews would be a "must" instead of a "should." There is some possibility a side strike could move it where if it is fully shrouded by the handguard, that would be unlikely.

Posted: 1/7/2019 10:27:21 AM EDT

[#3]

Quoted:
I am looking at my collection of parts and I have a 13 inch free float rail and a rifle length gas system barrel. A quick trial fit shows about 1/2 of the gas block will be out in front of the rail. Any issues otherwise?

View Quote

Virtually all issued military rifles (outside SOCOM) have a gas block that's not covered. They're fine.

Posted: 1/7/2019 10:38:30 AM EDT

[#4]

20" barrel with rifle gas. Don't know the rail measurement, but I was worried about how it would look. Looks fine to me, now I can reach my adjustment screw.

Posted: 1/7/2019 10:53:15 AM EDT

[#5]

16in barrel, rifle gas, Odin adjustable gas block, ALG 13in V0-E EMR rail

Next to a 16in middy with a 15in handguard

Aesthetically, one of my favorite setups. Something about exposed gas blocks is really quite nice.

Posted: 1/7/2019 10:59:34 AM EDT

[#6]

Good to go then. I need to grab a muzzle device and I think that is it.

Posted: 1/8/2019 3:25:36 PM EDT

[#7]

Quote History

Quoted:

Virtually all issued military rifles (outside SOCOM) have a gas block that's not covered. They're fine.

View Quote

And pinned...

Posted: 1/8/2019 3:48:06 PM EDT

[#8]

Quote History

Quoted:

And pinned...

View Quote

Not all of them. Early SPRs and the Mk12 they spawned weren't pinned, seem to do okay.

Posted: 1/14/2019 2:00:35 PM EDT

[#9]

It is screwed together.

Posted: 1/14/2019 2:17:19 PM EDT

[#10]

Quote History

Quoted:
I expect dimple of the barrel for the gas block setscrews would be a "must" instead of a "should." There is some possibility a side strike could move it where if it is fully shrouded by the handguard, that would be unlikely.

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
I am looking at my collection of parts and I have a 13 inch free float rail and a rifle length gas system barrel. A quick trial fit shows about 1/2 of the gas block will be out in front of the rail. Any issues otherwise?

I expect dimple of the barrel for the gas block setscrews would be a "must" instead of a "should." There is some possibility a side strike could move it where if it is fully shrouded by the handguard, that would be unlikely.

Any force strong enough to twist a set screw gas block isn't going to care if the barrel is dimpled or not.

Posted: 1/14/2019 2:57:05 PM EDT

[#11]

Quote History

Quoted:
Any force strong enough to twist a set screw gas block isn't going to care if the barrel is dimpled or not.

View Quote

Agreed. The set screws impart a "dimple" on the barrel when tightened down.

[ARCHIVED THREAD] - 13 inch rail and rifle length gas system.

AR-15 » Build It Yourself

AR Sponsor:

Warning

Confirm Action

About AR15.COM

Stay Connected

Newsletter

Contact Us