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Thread: Do I need to pin the gas block

  1. #51
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    If the journal is "oversized" enough, it may be easier to just use the oversized gas gas block for these barrels.

    I'd be happy to send you the larger version to swap it out with.

    Quote Originally Posted by BufordTJustice View Post
    I use the term "match" loosley. I don't have a pair of calipers right now (they're on loan), but the gas block simply would not move forward into the raised portion of the journal. I have a spare FSB and it was too tight to fit properly either (wouldn't slide on the raised ledge past about 1/4").

    The issue is the RA barrel, for sure. Though, I'm not unhappy with the barrel, that's just life sometimes.
    Black River Tactical
    BRT OPTIMUM HFCL Barrels - Hammer Forged Chrome Lined 11.5", 12.5", 14.5"
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 12.5" MRC, 11.5" CQB, 9" PDW
    BRT EZTUNE Preset Gas Tubes - CAR and MID
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  2. #52
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    Quote Originally Posted by Clint View Post
    If the journal is "oversized" enough, it may be easier to just use the oversized gas gas block for these barrels.

    I'd be happy to send you the larger version to swap it out with.

    I appreciate it, Clint. But with some sand paper, a glass of whiskey on the rocks, and some patience, I got the interior of this block fitting perfectly. I basically just had to remove most of the finish in the bore of the block for it to fit....so, not that much material.

    I'm okay with a little fitting. I'd rather it be too snug than too loose. I was able to sand until it slid on, but there was still some force required (not quite a press fit...but close).
    Last edited by BufordTJustice; 12-06-13 at 05:27.
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

  3. #53
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    Quote Originally Posted by BufordTJustice View Post
    Thank you, sir.

    That got me going. I just need a slightly larger drill bit to finish the dimples and I'll be done.

    Sent from my SPH-D710 using Tapatalk

    Nice! Ya, it's a nifty trick that i can't believe never occurred to me before, or more folks for that matter. Lol!

  4. #54
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    Quote Originally Posted by Col_Crocs View Post
    Nice! Ya, it's a nifty trick that i can't believe never occurred to me before, or more folks for that matter. Lol!
    Agreed. It's definitely saved in my bookmarks.

    I'm really pleased with the way it turned out. Nice, big dimples. Gonna be rock solid. I did skip the cold blue because my give-a-shit bone was broken at that point. Nobody is gonna see it.

    Sent from my SPH-D710 using Tapatalk
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

  5. #55
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    Sent from my SPH-D710 using Tapatalk
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

  6. #56
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    Just to test how well a field expedient install would go, i did just that.

    A hand drill and patience equals a super easy install. The drill bit that is included with the kit is actually of decent quality and is very stiff. Didn't flex at all.

    The roll pin is also sized perfectly in relation to the drill bit. Roll pin required a hammer, but went in relatively easily once the hammer was used. A strong, secure fit.

    You simply can't beat the price, folks. The gas block itself is a steal at this price. I'm very pleased.



    Sent from my SPH-D710 using Tapatalk
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

  7. #57
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    I too recently bought a Black River Tactical gas block, and agree the block is nice. Under priced for the quality.
    Just last night green and red loc tite-ed my new gas block. For the Holidays of course. Don't have access to a drill press just yet, so not pinned.

    Off topic->
    My group size shrunk a bit. Just using LC M193, my 5 shot strings were a bit under 2". A few much better than 2"
    Was over 2 1/2" yesterday before I glued the block...

  8. #58
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    Quote Originally Posted by ROK View Post
    I too recently bought a Black River Tactical gas block, and agree the block is nice. Under priced for the quality.
    Just last night green and red loc tite-ed my new gas block. For the Holidays of course. Don't have access to a drill press just yet, so not pinned.

    Off topic->
    My group size shrunk a bit. Just using LC M193, my 5 shot strings were a bit under 2". A few much better than 2"
    Was over 2 1/2" yesterday before I glued the block...
    I opted not to do the green loctite between the block and barrel. But, I did use the Red 272 equivalent (Permatex Red High temp), which is the 450 degree flavor. Std red loctite is only rated to 300 degrees. IG has stated he's used the std 271 (300 degree) formula without issue, so YMMV.
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

  9. #59
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    Good deal.

    Nice to see a hand drill works in a pinch.

    That drill is a short shank cobalt bit selected specifically for this job.

    Many people don't have a quality drill bit set on hand, so it was a natural choice to include it.

    Quote Originally Posted by BufordTJustice View Post
    Just to test how well a field expedient install would go, i did just that.

    A hand drill and patience equals a super easy install. The drill bit that is included with the kit is actually of decent quality and is very stiff. Didn't flex at all.

    The roll pin is also sized perfectly in relation to the drill bit. Roll pin required a hammer, but went in relatively easily once the hammer was used. A strong, secure fit.

    You simply can't beat the price, folks. The gas block itself is a steal at this price. I'm very pleased.



    Sent from my SPH-D710 using Tapatalk
    Black River Tactical
    BRT OPTIMUM HFCL Barrels - Hammer Forged Chrome Lined 11.5", 12.5", 14.5"
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 12.5" MRC, 11.5" CQB, 9" PDW
    BRT EZTUNE Preset Gas Tubes - CAR and MID
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  10. #60
    Join Date
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    Quote Originally Posted by Clint View Post
    Good deal.

    Nice to see a hand drill works in a pinch.

    That drill is a short shank cobalt bit selected specifically for this job.

    Many people don't have a quality drill bit set on hand, so it was a natural choice to include it.
    Hot knife through butter. It just powered through the gas block and perfectly clipped the bottom of the barrel. It was still sharp to the touch after I was done with everything. I'm keeping the bit for a rainy day. It's clearly not a cheapy.


    EDIT: I'll add that the McMaster-Carr knurled cup-tip set screws are a nice touch as well. They really dig into the barrel dimples HARD. I'm very pleased.

    This is one of the best gas blocks for the price WITHOUT the first quality drill bit, pin-starter dimple on the GB body, and roll-pin.
    Last edited by BufordTJustice; 01-01-14 at 23:00.
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

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