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Posted: 2/2/2006 11:06:06 PM EDT
for the width of barrels?

Hmmm, i think that make sense.
Link Posted: 2/3/2006 4:04:36 AM EDT
Believe your referring to the "diameter" there A96.

Most common diameters are 0.750" & 0.936" and can be had in many versions, see here: www.brownells.com/aspx/NS/store/catsearch.aspx?k=AR15+gas+block&ps=10&si=True

Mike
Link Posted: 2/3/2006 12:43:51 PM EDT
Don't forget .625".
Link Posted: 2/3/2006 4:17:02 PM EDT
Or .875
Link Posted: 2/3/2006 11:28:26 PM EDT
Link Posted: 2/4/2006 6:10:26 AM EDT
think the beowulf .50 is an oddball.
Link Posted: 2/4/2006 9:50:50 AM EDT
Link Posted: 2/4/2006 11:14:55 AM EDT

Originally Posted By AR15barrels:

Originally Posted By eklikwhoa:
think the beowulf .50 is an oddball.



That's right, I heard that once too.
Something like 0.905" or 0.907"
Obviously, 0.875" was too small and 0.936" was too big
Wait, or maybe they just wanted to build a non-standard barrel so you can ONLY buy gas blocks from them?




isnt that how you do it?
Link Posted: 2/4/2006 11:17:36 AM EDT
[Last Edit: 2/4/2006 11:21:14 AM EDT by mongo001]
Compass Lake has an oddball setup, but it's not a FSB, really, just a gas block. I have one of their gas blocks. Some tird on ebay sold it to me as a bull barrel gas block, but guess what, it wasn't. I got it cheap enough so that I didn't pursue resolution and someday I'll by an RRA bull barrel and reprofile it so that I can use this gas block.

Link

Link - first gas block on the page.
Link Posted: 2/4/2006 11:43:12 AM EDT
[Last Edit: 2/4/2006 11:45:33 AM EDT by AR15barrels]
Link Posted: 2/4/2006 11:44:28 AM EDT
Link Posted: 2/4/2006 12:57:42 PM EDT

Originally Posted By AR15barrels:

Originally Posted By mongo001:
Compass Lake has an oddball setup, but it's not a FSB, really, just a gas block.



What's the inside diameter of that CLE gas block?



MSTN has one on his page in the Industry section (on a Super-SAM) and says it's .850" ID.
Link Posted: 2/4/2006 1:52:10 PM EDT

Originally Posted By AyeGuy:

Originally Posted By AR15barrels:

Originally Posted By mongo001:
Compass Lake has an oddball setup, but it's not a FSB, really, just a gas block.



What's the inside diameter of that CLE gas block?



MSTN has one on his page in the Industry section (on a Super-SAM) and says it's .850" ID.



Ya, 0.850 sounds right. It's in one of my boxes of "stuff" (read junk). I might get to that project in the next millenium. The MSTN rifle was the motivating factor, BTW.
Link Posted: 2/4/2006 3:28:25 PM EDT
Link Posted: 2/4/2006 9:33:24 PM EDT
I swiped ths from the Larue website:

LT202-1: LaRue Low Profile Gas Block - 0.75" AR15
LT202-2: LaRue Low Profile Gas Block - 0.625" AR15
LT202-3: LaRue Low Profile Gas Block - 0.875", 0.275" Spacing, AR10
LT202-5: LaRue Low Profile Gas Block - 0.875", 0.3" Spacing, AR10

Does that mean they don't have a 0.875" for the AR15?

The missing LT202-4 perhaps?
Link Posted: 2/4/2006 9:57:08 PM EDT
Link Posted: 2/4/2006 11:25:11 PM EDT
What diameter gas blocks do guys use who have Bull barrels? They must be greater than 0.750"

I too was inspired by MSTN's "Super Sam" and was going to have a custom barrel made. Getting a good gas block for it is the sticking point and I was looking at the CLE one; now I know it's not a dimension commonly in use I'm not so sure.

I have a Larue low-profile on my Recce and was hoping for a bigger brother on a bull barrel. With these set-screw type gas blocks I like to go with an extended handguard which covers them to prevent them from being knocked askew.
Link Posted: 2/4/2006 11:30:36 PM EDT
Link Posted: 2/5/2006 7:06:52 AM EDT
[Last Edit: 2/5/2006 7:09:34 AM EDT by AyeGuy]
Can the Larue 0.875" gas block be refitted to work on an AR15 barrel?

I'm not big on Tradition. All my ARs have either Green or Flat Dark Earth furniture. I plan on having my "bull" barrel made to be 22" long instead of the traditional 20" or 24".
Link Posted: 2/5/2006 7:19:58 AM EDT
Link Posted: 2/5/2006 12:03:30 PM EDT
[Last Edit: 2/5/2006 12:03:42 PM EDT by A96HondaAccordEX]
what's the standard size for "M4" type barrels? What size is it for "light weight/pencil" barrels?
Link Posted: 2/5/2006 12:19:45 PM EDT
Link Posted: 2/5/2006 9:39:59 PM EDT

Originally Posted By AR15barrels:

Originally Posted By A96HondaAccordEX:
what's the standard size for "M4" type barrels? What size is it for "light weight/pencil" barrels?



Gas block sizing:

Pencil and true lightweights: 0.625"
Most HBARs, medium weights, govt profiles, M4's, AR-10A2/A4 etc: 0.750"
AR-10T: 0.875"
Most bulls: 0.936"



Is there a place to buy a .625" FSB?
Link Posted: 2/5/2006 10:00:45 PM EDT
Link Posted: 2/5/2006 10:15:30 PM EDT
[Last Edit: 2/5/2006 10:16:25 PM EDT by A96HondaAccordEX]

Originally Posted By AR15barrels:

Originally Posted By A96HondaAccordEX:

Is there a place to buy a .625" FSB?



That's the question of the week.
Let me know if you find a source.



Oh, i see.
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