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OR, USA
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Posted: 4/4/2024 7:35:10 PM EDT
[#1]
Quote HistoryOriginally Posted By slowkota1: That would happen when I don't have the funds. 😤 Buuuut... I did get an AE product today! lol https://i.imgur.com/aCIZMGC.jpg Quote HistoryOriginally Posted By slowkota1: Originally Posted By Mblades: @slowkota1 they’ve got black ones in stock now. That would happen when I don't have the funds. 😤 Buuuut... I did get an AE product today! lol https://i.imgur.com/aCIZMGC.jpg That’s going to be sweet! I’ll need to built something fun for when I get mine |
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Posted: 4/4/2024 7:40:03 PM EDT
[#2]
Quote HistoryOriginally Posted By joesrcool: I've posted this before, but here's my take on a mini Mod-H. 12.5in with a custom collar. https://www.ar15.com/media/mediaFiles/179240/20230908_142334_jpg-3175954.JPG 
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Posted: 4/4/2024 8:02:39 PM EDT
[#3]
Quote HistoryOriginally Posted By ghostgunnerX: https://www.ar15.com/media/mediaFiles/474201/66758951176__9851AFBA-4BA6-4548-8FD1-7BF-3178315.jpg Reminds me of one of my old favorites. 
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Posted: 4/4/2024 8:22:13 PM EDT
[#4]
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Posted: 4/5/2024 12:47:50 PM EDT
[#5]
Thoroughbred arms just got three lengths of Allegheny tapered gas blocks for those in need
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USA
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Posted: 4/5/2024 12:55:43 PM EDT
[#6]
Quote HistoryOriginally Posted By ghostgunnerX: https://www.ar15.com/media/mediaFiles/474201/66758951176__9851AFBA-4BA6-4548-8FD1-7BF-3178315.jpg Quote HistoryOriginally Posted By ghostgunnerX: Originally Posted By joesrcool: I've posted this before, but here's my take on a mini Mod-H. 12.5in with a custom collar. https://www.ar15.com/media/mediaFiles/179240/20230908_142334_jpg-3175954.JPG https://www.ar15.com/media/mediaFiles/474201/66758951176__9851AFBA-4BA6-4548-8FD1-7BF-3178315.jpg Since we're doing Mini Mk12s...  Uses an AEM4 on a 12.5" Noveske stainless, custom collar courtesy of Ron. The "Mk12.5" |
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Posted: 4/5/2024 12:56:29 PM EDT
[#7]
Quote HistoryOriginally Posted By Cowbell: Thoroughbred arms just got three lengths of Allegheny tapered gas blocks for those in need Interesting. I can’t really tell by the description what the difference is (outside of measurement  ) between these 2. Is there a certain handguard it’s supposed to work with? I know Alleghany is on here, but I can’t remember his name. |
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Posted: 4/5/2024 1:03:11 PM EDT
[#8]
Quote HistoryOriginally Posted By Subpar: Interesting. I can’t really tell by the description what the difference is (outside of measurement ) between these 2. Is there a certain handguard it’s supposed to work with?https://www.ar15.com/media/mediaFiles/147863/IMG_4546-3178879.jpg I know Alleghany is on here, but I can’t remember his name. I was about to post the same question. My old Spikes block is a 1” with the taper being .25”. |
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Posted: 4/5/2024 1:03:56 PM EDT
[#9]
@SchlaffTablett
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Posted: 4/5/2024 1:39:51 PM EDT
[#10]
Alleghany has this under their 1.040" description:
Carbine: 11.56" Mid-Length: 13.56" Rifle: 16.56" Going into my CAD models, I'm seeing the following: 1.100" Carbine: 11.24" Mid-Length: 13.24" Rifle: 16.62" 1.040" Carbine: 11.18" Mid-Length: 13.18" Rifle: 16.56" .880" Carbine: 11.02" Mid-Length: 13.02" Rifle: 16.40" Mid-Length is exactly 2" longer than Carbine, but Rifle is not exactly 5" longer than Carbine. |
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Posted: 4/5/2024 1:40:47 PM EDT
[#11]
Quote HistoryOriginally Posted By Outrider: I was about to post the same question. My old Spikes block is a 1” with the taper being .25”. What is your gas system length and barrel length (bolt face to muzzle with 5/8" long threads)? |
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Posted: 4/5/2024 1:45:38 PM EDT
[#12]
Quote HistoryOriginally Posted By pezboytate: What is your gas system length and barrel length (bolt face to muzzle with 5/8" long threads)? Rifle gas. It’s right around 16.5”. Marked an alignment rod and used tape measure. |
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Posted: 4/5/2024 1:48:37 PM EDT
[#13]
Quote HistoryOriginally Posted By Outrider: Rifle gas. It’s right around 16.5”. Marked an alignment rod and used tape measure. That matches what they say for Rifle if they made a 1.000" version. |
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Posted: 4/5/2024 2:03:52 PM EDT
[Last Edit: SchlaffTablett]
[#14]
So right now we're doing 1.100", 1.040", and .880" blocks. Those measurements are the length of the gas tube channel not the overall length of the blocks. The numbers we posted that were quoted above are pretty accurate (+/- a few thou, on par). The .880 blocks were made with a smaller diameter taper as well as a shorter OAL to allow mounting of B-mount cans directly onto 10.5" carbine, 12.5" mid, and 16" rifle barrels. You'll have to play with the brake spacers to get the right number of turns but they should work for most barrel manufacturers. We got the measurements from about 15 makers and based the design on the average of those but there will, of course, be variation.
As far as fitment, the 1.100 was designed for KAC quad rails and I know also fits Gisselle albeit a little more snug. The 1.040 was requested for someone else's rail to get a little better fit although I'm not sure whose it fits best. If the front of the gas tube channel is the same length or longer than the front of the rail, you're good to go but you CAN usually go .050' under and still have enough room that the can will clear. We're also working on a modified brake design that should allow mounting of A series cans onto some unmodified barrels as well but I'm still getting those worked out. |
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Posted: 4/5/2024 10:22:09 PM EDT
[#15]
You should do whole barrels.
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USA
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Posted: 4/6/2024 9:02:31 AM EDT
[#16]
So for someone who clearly has no idea what any of that means, how should I be using those numbers to figure out which gas block I actually need?
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Posted: 4/6/2024 9:32:42 AM EDT
[#17]
Quote HistoryOriginally Posted By bigbore: Reminds me of one of my old favorites. https://www.ar15.com/media/mediaFiles/12678/7-5weight-3178385.jpg So which can did you use on that one and what barrel? Looks like what I need. |
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Posted: 4/6/2024 10:06:11 AM EDT
[#18]
Quote HistoryOriginally Posted By BM1455: So which can did you use on that one and what barrel? Looks like what I need. OPS 14th model on 7.5" barrel. |
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Posted: 4/6/2024 2:32:13 PM EDT
[#19]
Quote HistoryOriginally Posted By bigbore: OPS 14th model on 7.5" barrel. Thanks. I have the m4 extender on my 7.5 BA with an AE brake what options do I have that they still make? (The barrel is 1:7.) I would like it to be as short over all as possible but maybe I can't get those versions any more? |
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Posted: 4/6/2024 5:29:44 PM EDT
[Last Edit: mk4dubbin]
[#20]
I need some inspirational pics now that these Allegheny gas blocks are available
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NC, USA
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Posted: 4/6/2024 5:33:35 PM EDT
[#21]
Quote HistoryOriginally Posted By bigbore: Reminds me of one of my old favorites. https://www.ar15.com/media/mediaFiles/12678/7-5weight-3178385.jpg Quote HistoryOriginally Posted By bigbore: Originally Posted By ghostgunnerX: https://www.ar15.com/media/mediaFiles/474201/66758951176__9851AFBA-4BA6-4548-8FD1-7BF-3178315.jpg Reminds me of one of my old favorites. https://www.ar15.com/media/mediaFiles/12678/7-5weight-3178385.jpg I have been considering rebuilding my 8” 300blk and I think that will be the direction i go. Will a AEM5-30 fir under a PRI tube? |
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Posted: 4/6/2024 7:48:15 PM EDT
[Last Edit: Ryan_Scott]
[#22]
It will but you can’t mount all the rails and it gets hot as hell.
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NC, USA
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Posted: 4/8/2024 7:37:28 PM EDT
[#23]
Quote HistoryOriginally Posted By Ryan_Scott: It will but you can’t mount all the rails and it gets hot as hell. I thought the -30 had a wider diameter but it is listed at 1.5” just like the aem5 so I should be good to go. I shaved down my pri hardware a tad and it has been test fit g2g with a aem5 |
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Posted: 4/8/2024 7:46:18 PM EDT
[#24]
@k31user do you still plan a run of M24s? I should be on your list if so.
Thank you |
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CA, USA
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Posted: 4/8/2024 11:36:42 PM EDT
[#25]
Quote HistoryOriginally Posted By SaturationTech: @k31user do you still plan a run of M24s? I should be on your list if so. Thank you I don't think I will be able to. RonA |
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USA
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Posted: 4/9/2024 12:27:41 AM EDT
[#26]
Quote HistoryOriginally Posted By india13c: So for someone who clearly has no idea what any of that means, how should I be using those numbers to figure out which gas block I actually need? Can anyone help me understand? |
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Posted: 4/9/2024 12:31:52 AM EDT
[#27]
Quote HistoryOriginally Posted By india13c: Can anyone help me understand? Quote HistoryOriginally Posted By india13c: Originally Posted By india13c: So for someone who clearly has no idea what any of that means, how should I be using those numbers to figure out which gas block I actually need? Can anyone help me understand? What rail do you have? |
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USA
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Posted: 4/9/2024 3:31:07 AM EDT
[Last Edit: india13c]
[#28]
Quote HistoryOriginally Posted By pezboytate: What rail do you have? Quote HistoryOriginally Posted By pezboytate: Originally Posted By india13c: Originally Posted By india13c: So for someone who clearly has no idea what any of that means, how should I be using those numbers to figure out which gas block I actually need? Can anyone help me understand? What rail do you have? I haven’t decided yet. That’s the only part I understand, knowing that you need the rail to end before the taper. It’s the barrel length numbers I’m not following, unless I’m just not reading it properly, I’m just not understanding what those barrel length numbers are supposed to mean/how to use them. I’m wanting to probably use my Rainier 16” rifle length barrel, if that’s important to know. Also, it’s an AEM5 |
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Posted: 4/9/2024 3:37:51 AM EDT
[#29]
AEM5 on a rifle length 16 is going to be a no go. You need 16.56” or so or switch to the shorter cans to make it work.
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USA
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Posted: 4/9/2024 3:45:58 AM EDT
[Last Edit: india13c]
[#30]
Quote HistoryOriginally Posted By Ryan_Scott: AEM5 on a rifle length 16 is going to be a no go. You need 16.56” or so or switch to the shorter cans to make it work. Are you saying that because the barrel is too short? Are the numbers the minimum barrel length required to use that block? That’s what I’m not understanding. I.E. to use the 1.040 you need to have a barrel at least 16.56” long on a rifle gas system, etc? As in you’d have to cut one down to that length? |
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Posted: 4/9/2024 4:09:55 AM EDT
[#31]
Yeah, you’d have to cut that particular one.
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USA
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Posted: 4/9/2024 4:32:26 AM EDT
[Last Edit: india13c]
[#32]
Quote HistoryOriginally Posted By Ryan_Scott: Yeah, you’d have to cut that particular one. I guess I’m dumb and I’m still not following. What are the numbers they reference in the product description actually correlating to? For example: 1.040” block 16.56” rifle gas 1.100” block 16.50” rifle gas If those OAL numbers are the min barrel length, then how would the longer block require a shorter barrel than the shorter block? All I’m trying to understand is how to use the OAL numbers to determine which block to use. |
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Posted: 4/9/2024 5:09:34 AM EDT
[#33]
I don’t trust those numbers but I know with the Spikes block you need about 16.5”. I thought about trying to talk Ron into making my AE22 with a shorter back half but don’t bring it up in time either way.
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Posted: 4/9/2024 6:28:39 AM EDT
[#34]
Quote HistoryOriginally Posted By india13c: I guess I’m dumb and I’m still not following. What are the numbers they reference in the product description actually correlating to? For example: 1.040” block 16.56” rifle gas 1.100” block 16.50” rifle gas If those OAL numbers are the min barrel length, then how would the longer block require a shorter barrel than the shorter block? All I’m trying to understand is how to use the OAL numbers to determine which block to use. Those are the min lengths. You’re going to have to cut a barrel down anyway so it’s kind of a moot point. Based on your handguard selection you can choose one for best fit. |
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Posted: 4/9/2024 11:10:50 AM EDT
[#35]
Quote HistoryOriginally Posted By Outrider: Those are the min lengths. You’re going to have to cut a barrel down anyway so it’s kind of a moot point. Based on your handguard selection you can choose one for best fit. That's pretty much right on the head. We give the tube channel measurement so you can measure from the block shoulder on the barrel to the front of your rail. The numbers that are being quoted above are pretty close but will vary somewhat depending on your specific can as well as how you install the gas block. For example, if you choose to butt the block against the shoulder vs. centering on the gas hole usually moves the block about .020 or so. Each turn on the can is just about .040 so that's enough to gain or lose a 1/2 turn. At the end of the day, when using the AEM5's you're going to have the barrel cut to a custom length so pick the block that fits your rail the best. And for some inspiration.... ~13.5" with KAC rail and 1.100 gas block.  AEM3 on a 10.5" with the .880 block 
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Posted: 4/10/2024 9:39:37 AM EDT
[#36]
Who’s the best shop to have a collar fit to a a FSB? I have a Gordy collar that once I get the barrel will need to be fitted. On Dwilson’s site it says not available and ADCO’s ops contour says out of stock
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Posted: 4/10/2024 9:42:52 AM EDT
[#37]
Quote HistoryOriginally Posted By DackJaniels: Who’s the best shop to have a collar fit to a a FSB? I have a Gordy collar that once I get the barrel will need to be fitted. On Dwilson’s site it says not available and ADCO’s ops contour says out of stock My bad, it says in stock now. |
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Posted: 4/10/2024 10:08:48 AM EDT
[Last Edit: DackJaniels]
[#38]
Quote HistoryOriginally Posted By bigbore: My bad, it says in stock now. That was super quick! You’re the man. Does that service include Gordon collars? And if I’m reading right I’ll need to get a longer barrel to have cut and threaded, can’t send in a 12.5”? |
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Posted: 4/10/2024 10:14:49 AM EDT
[#39]
Quote HistoryOriginally Posted By DackJaniels: That was super quick! You’re the man. Does that service include Gordon collars? And if I’m reading right I’ll need to get a longer barrel to have cut and threaded, can’t send in a 12.5”? If I recall it's more of the 12.7" range. |
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Posted: 4/10/2024 10:59:47 AM EDT
[#40]
Quote HistoryOriginally Posted By Outrider: If I recall it's more of the 12.7" range. Yeah it is. I figured I might get away with a KAC Spacer on a 12.5” but may just need to get something cut down to 12.7” |
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Posted: 4/10/2024 11:04:57 AM EDT
[#41]
Quote HistoryOriginally Posted By DackJaniels: That was super quick! You’re the man. Does that service include Gordon collars? And if I’m reading right I’ll need to get a longer barrel to have cut and threaded, can’t send in a 12.5”? If all you need is a gordon collar costom sized you select this |
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Posted: 4/10/2024 1:37:37 PM EDT
[#42]
Quote HistoryAny Gordon collars coming in stock soon? |
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CA, USA
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Posted: 4/10/2024 4:32:05 PM EDT
[#43]
Steve. If you need more Gordon collars, let me know.
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USA
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Posted: 4/10/2024 4:34:38 PM EDT
[#44]
Did someone say mini mk12?
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Posted: 4/10/2024 4:48:34 PM EDT
[#45]
Quote HistoryOriginally Posted By Bringo: Did someone say mini mk12? https://live.staticflickr.com/65535/53546934917_e3d9e62f07_c.jpg Nice! |
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Posted: 4/10/2024 4:56:12 PM EDT
[#46]
Quote HistoryOriginally Posted By Bringo: Did someone say mini mk12? https://live.staticflickr.com/65535/53546934917_e3d9e62f07_c.jpg I want to build exactly that. Damn. That’s hot. |
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Posted: 4/10/2024 7:49:56 PM EDT
[#47]
Quote HistoryOriginally Posted By Bringo: Did someone say mini mk12? https://live.staticflickr.com/65535/53546934917_e3d9e62f07_c.jpg Love that 14#? Lol |
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Posted: 4/10/2024 7:52:40 PM EDT
[#48]
Quote HistoryOriginally Posted By Bringo: Did someone say mini mk12? https://live.staticflickr.com/65535/53546934917_e3d9e62f07_c.jpg This rig has long had me inspired. I’ve got some stuff out for Cerakote and plan to do a 13.5” middy. |
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Posted: 4/10/2024 7:58:08 PM EDT
[#49]
Quote HistoryOriginally Posted By Bringo: Did someone say mini mk12? https://live.staticflickr.com/65535/53546934917_e3d9e62f07_c.jpg That’s awesome. Build details, if you please? |
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OR, USA
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Posted: 4/11/2024 6:15:44 PM EDT
[#50]
Just got the approval email for my AEM5-30k a couple hours ago. Now I need to figure out how best to make it work on my SCAR 20 308 barrel. Ideally I would get the can as flush as possible to the receiver.
I have a Mod-H that started life as a 17” Lilja 6.5 Grendel barrel and ADCO cut it down and profiled it for the Ops 12th so I’m using that as a reference. The distance from the receiver to the muzzle of the 20” barrel is ~6.7725” I used a tape measure to get the distance from the upper to the step for the threaded portion(6 1/16”) with the 6.5 Creedmoor barrel installed.  I then used calipers to measure the threaded section of the 308 barrel at .710”  Looking at the Mod-H the step is 2.5” behind the muzzle and the custom collar extends .314” behind the step, the 20* taper portion looks to be a little over 1/2 that length.  So if I’m mathing right 20in barrel cut to 16in gives me ~2.7725” to work with. I’ve seen drawings that show both 2.5” and 2.4” to the start of the 20* taper. Do I have enough room for a custom collar? I assume one like I have on the Mod-H could be shortened. If I can go 2.4” from muzzle to step it shouldn’t be a problem. Do I need a collar? I see the drawing for the AE30 showing .92” for the min barrel OD behind the taper to get the suppressor to mount, the scar barrel is .84” does that change for the 30cal aem5? I see the drawing for the spr collar showing .755” behind the collar and .725” in front. Does that mean I only need .02” difference for the collar to mount or does the barrel in front of the collar need to be smaller to accommodate the suppressor? Thanks for any info, trying to get as educated as possible before bugging ADCO with dumb questions. |
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