how to see what size gas block

[everready73]

the website does have it listed on their models and the 10.5 model barrels are either .625 or .750. I looked over the whole barrel and couldn't find any other markings

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They only have 2 barrels in 10.5 that are 556. A pencil profile and govt profile. What profile is your barrel? Pencil is skinny for the entire length of the barrel and has.625 and the govt has pencil profile to the gas block then is thicker on the end and is .750. That would be the easiest way to tell without removing anything

[stx.dead.I]

They only have 2 barrels in 10.5 that are 556. A pencil profile and govt profile. What profile is your barrel? Pencil is skinny for the entire length of the barrel and has.625 and the govt has pencil profile to the gas block then is thicker on the end and is .750. That would be the easiest way to tell without removing anything

ahh sweet thanks! I couldn't tell a difference in the pic at first glance but now I can see a difference. will look when I get home. thanks!

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[GH41]

ahh sweet thanks! I couldn't tell a difference in the pic at first glance but now I can see a difference. will look when I get home. thanks!

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I don't understand why you don't just take off the handguard and measure it. You are going to have to take it off anyway. What's the big deal??

[stx.dead.I]

I don't understand why you don't just take off the handguard and measure it. You are going to have to take it off anyway. What's the big deal??

cause I don't have calipers. I bought a 750 block today that I'm pretty sure will work

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[Mike Miller]

?
Just hold a ruler up to it

[bamashooter]

I need to get an adjustable gas block for my suppressed sbr. I am literally sitting round from 12:15 to about 1:30 on the clock. I'm also getting some jams. it's a 10.5 faxon barrel with a suppressor. the only markings I can find on the barrel are 5.56 NATO 1-8T 416R.

Do yall think it would have what barrel profile or gas block size stamped somewhere else away from these marking? I don't want to have to remove my rail but as it's perfect on there. there's either .625 or .750 by this manufacturer

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The only Faxon 10.5" stainless (416R) / (5.56) I find is a carbine - length w/ a .750" gas block diameter. (.080" gas port).

[stx.dead.I]

The only Faxon 10.5" stainless (416R) / (5.56) I find is a carbine - length w/ a .750" gas block diameter. (.080" gas port).

well, I can't get the dang gas tube out of my original gas block so install is on hold till I get a new tube...lol

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[Mike Miller]

Put an adjustable wrench around your gas tube, leaving a bit of a gap. Hold the gas tube, and let the gas block hang low a couple of inches off the carpet. Whack the gas block down with the wrench, still holding the gas tube. You're not beating on it, just let gravity do most of the work. A couple hits and it should be free, assuming the roll pin was removed.

[everready73]

well, I can't get the dang gas tube out of my original gas block so install is on hold till I get a new tube...lol

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Right To Bear has Superlative Arms and SLR (with free gas tube) options at good prices with free shipping usually. You have to add to your cart sometimes to see the sale pricing. They are good to go, I have ordered form them multiple tmes. Fast shipping as well

https://www.righttobear.com/Adjustab...cks-s/1988.htm

[bamashooter]

well, I can't get the dang gas tube out of my original gas block so install is on hold till I get a new tube...lol

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Not being a smart-butt; did you remove the roll pin?