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Posted: 3/17/2021 4:28:01 AM EDT
[Last Edit: Combat_Diver]
[#1]
Quote HistoryOriginally Posted By oneofus: https://i.postimg.cc/MTVxNfrk/urgi.png Any idea the offset mount hes using on the aimpoint? absolutely love this build This is what was provided with the T1. Since mounted to scope body, I would say the Aimpoint mount.   Attached FileCD |
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CA, USA
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Posted: 3/17/2021 10:49:43 AM EDT
[#2]
It looks like the sight is mounted to the front handguard going off of sight alignment. My guess would be either Arisaka or KAC offset
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Posted: 3/17/2021 11:26:25 AM EDT
[Last Edit: Combat_Diver]
[#3]
Quote HistoryOriginally Posted By TheBrokePilot: It looks like the sight is mounted to the front handguard going off of sight alignment. My guess would be either Arisaka or KAC offset Then the ARMS #31 mount pictured above also (top right, manual bottom left). Again this is in the system. CD |
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Posted: 3/17/2021 11:30:40 AM EDT
[#4]
Quote HistoryOriginally Posted By Combat_Diver: Then the ARMS #31 mount pictured above also (top right, manual bottom left). Again this is in the system. CD Quote HistoryOriginally Posted By Combat_Diver: Originally Posted By TheBrokePilot: It looks like the sight is mounted to the front handguard going off of sight alignment. My guess would be either Arisaka or KAC offset Then the ARMS #31 mount pictured above also (top right, manual bottom left). Again this is in the system. CD CD - I know we've seen pics of Daniel Defense Offset Aimpoint mounts on the Mk17 - are those in the system at all? Or are those like individual or unit purchases? |
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Posted: 3/17/2021 11:56:14 AM EDT
[Last Edit: Combat_Diver]
[#5]
Quote HistoryOriginally Posted By wayfaerer320: CD - I know we've seen pics of Daniel Defense Offset Aimpoint mounts on the Mk17 - are those in the system at all? Or are those like individual or unit purchases? Normally I don't see how they get them. Only know if it comes thru us and we have to replace. CD |
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Posted: 3/17/2021 12:42:58 PM EDT
[#6]
Sweet camo job:
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Posted: 3/17/2021 12:48:58 PM EDT
[#7]
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Posted: 3/17/2021 7:05:30 PM EDT
[#8]
Quote HistoryOriginally Posted By Combat_Diver: CAGE coded uppers have been is service for over two years. I've seen FN cage coded but not Colts yet. Haven't gotten any in a while. Remember all URGIs were rebuilt on existing uppers. Units in the states ordered new uppers for builds. So again any uppers that are in the supply chain can be utilized. CD Quote HistoryOriginally Posted By Combat_Diver: Originally Posted By pezboytate: Any upper in circulation would be correct. I'm not sure if CAGE marked uppers have been seen in the wild. I have posted pictures of all of the identifiable uppers in the first post. My bet is Geissele will never sell an URG with a DD gas block. CAGE coded uppers have been is service for over two years. I've seen FN cage coded but not Colts yet. Haven't gotten any in a while. Remember all URGIs were rebuilt on existing uppers. Units in the states ordered new uppers for builds. So again any uppers that are in the supply chain can be utilized. CD With the new rail is a barrel swap guaranteed? |
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Posted: 3/17/2021 7:16:54 PM EDT
[#9]
The URGI w/ the Rhodie painted lower had a colt cage code upper
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Posted: 3/17/2021 8:05:27 PM EDT
[#10]
Quote HistoryOriginally Posted By dempsy1: With the new rail is a barrel swap guaranteed? I would assume so. The URGI is the mid-length gas system Daniel Defense barrel. |
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Posted: 3/17/2021 9:01:12 PM EDT
[Last Edit: Combat_Diver]
[#11]
Quote HistoryOriginally Posted By dempsy1: With the new rail is a barrel swap guaranteed? Yes, rail comes with a new 14.5” DD mid length gas system barrel. New different gas block, gas tube and Geissele Airborne CH. Reuses upper receiver, BCG and SF 4P FH. Sometimes those will be new too however. As it easier to build a set of 12 new uppers for a ODA then tear down, clean, inspect and then rebuild then gage headspace. Later,tear those down and clean, inspect parts. Whoever planned it didn’t consider a new bolt for the new barrel either. CD |
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Posted: 3/17/2021 11:47:12 PM EDT
[Last Edit: M4AZ]
[#12]
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Posted: 3/18/2021 7:08:10 PM EDT
[#13]
For those looking for NSN marked rails, I got my blem MK16 in today and it's not NSN marked. Just my luck!
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Posted: 3/19/2021 9:28:13 AM EDT
[#14]
That sucks. The 13.5 I received last week was NSN roll marked. The 10.5 I got this week was not.
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Posted: 3/19/2021 9:35:11 AM EDT
[#15]
Quote HistoryOriginally Posted By RobNC: That sucks. The 13.5 I received last week was NSN roll marked. The 10.5 I got this week was not. I haven't seen any 10.5"s with NSNs. |
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GA, USA
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Posted: 3/19/2021 10:14:45 AM EDT
[#16]
So they are not using the 9.3 URG rails? Does this mean they are phasing out the 10.3 barrels to the 11.5?
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Posted: 3/19/2021 10:20:59 AM EDT
[#17]
Quote HistoryOriginally Posted By huey_crew_chief: So they are not using the 9.3 URG rails? Does this mean they are phasing out the 10.3 barrels to the 11.5? Right now, 10.3" RIS II URGs are still being used by USASOC. They probably tested the 10.3" URG-I and there were probably COTS purchases of them, but it is not going to be issued in quantity to USASOC. The 11.5" URG-I is supposed to be issued to USASOC soon. |
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Posted: 3/19/2021 12:11:14 PM EDT
[#18]
Quote HistoryOriginally Posted By pezboytate: Right now, 10.3" RIS II URGs are still being used by USASOC. They probably tested the 10.3" URG-I and there were probably COTS purchases of them, but it is not going to be issued in quantity to USASOC. The 11.5" URG-I is supposed to be issued to USASOC soon. I wonder what their reasoning was for going with the 11.5” verses the 10.3”? I know we are talking about just less than 2”, is there that much mobility loss between the 10.3” and the 11.5”, ot are the gains in barrel length worth the slight loss in mobility? I was always under the impression the 10.3” was a naval request for ship operations? Hell I may be completely wrong? 
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Posted: 3/19/2021 12:54:01 PM EDT
[#19]
Quote HistoryOriginally Posted By mstennes: I wonder what their reasoning was for going with the 11.5” verses the 10.3”? I know we are talking about just less than 2”, is there that much mobility loss between the 10.3” and the 11.5”, ot are the gains in barrel length worth the slight loss in mobility? I was always under the impression the 10.3” was a naval request for ship operations? Hell I may be completely wrong? We talked about this a few pages ago I believe. I don't know. Reliability and ballistics hasn't been a problem with the 10.3"s so I doubt that's it. I guess it's a good thing that you get 1.2" more rail space with the 11.5". The only thing I don't understand is why would they have both he 14.5" and 11.5" when they are only 3" different. |
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Posted: 3/19/2021 12:55:11 PM EDT
[Last Edit: UndrGrndPrdcts]
[#20]
Quote HistoryOriginally Posted By pezboytate: We talked about this a few pages ago I believe. I don't know. Reliability and ballistics hasn't been a problem with the 10.3"s so I doubt that's it. I guess it's a good thing that you get 1.2" more rail space with the 11.5". The only thing I don't understand is why would they have both he 14.5" and 11.5" when they are only 3" different. Yea I asked this question and some guys attacked me
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Posted: 3/19/2021 1:14:16 PM EDT
[#21]
Quote HistoryOriginally Posted By UndrGrndPrdcts: Yea I asked this question and some guys attacked me Quote HistoryOriginally Posted By UndrGrndPrdcts: Originally Posted By pezboytate: We talked about this a few pages ago I believe. I don't know. Reliability and ballistics hasn't been a problem with the 10.3"s so I doubt that's it. I guess it's a good thing that you get 1.2" more rail space with the 11.5". The only thing I don't understand is why would they have both he 14.5" and 11.5" when they are only 3" different. Yea I asked this question and some guys attacked me I guess we'll just have to see what happens but one length for everyone would make a lot more sense than stocking both an 11.5" and 14.5". People could argue all day what that length would be (12.5" is the correct answer), but I don't think it really matters much. |
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Posted: 3/19/2021 1:59:26 PM EDT
[Last Edit: SMFdarkangel]
[#22]
Quote HistoryOriginally Posted By mstennes: I wonder what their reasoning was for going with the 11.5” verses the 10.3”? I know we are talking about just less than 2”, is there that much mobility loss between the 10.3” and the 11.5”, ot are the gains in barrel length worth the slight loss in mobility? I was always under the impression the 10.3” was a naval request for ship operations? Hell I may be completely wrong? It's likely the same reason that KAC, BCM, etc all transitioned to 11.5" barrels. An 11.5" carbine is only about 4% longer than a 10.3" carbine. However that additional barrel length yields an ~40% increase in dwell time. This translates into less overgassing, increased component service life, and a more reliable weapon. Regarding all the comments about 11.5" vs 14.5", I don't think the velocity difference is insignificant. There were some folks making outrageous claims that 14.5" only offered like 30+ FPS over a 11.5", which is just flat out false. In a real-world application, extending effective range by another 150 meters (just spit balling) isn't insignificant. |
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Posted: 3/19/2021 2:42:15 PM EDT
[#23]
Quote HistoryOriginally Posted By SMFdarkangel: It's likely the same reason that KAC, BCM, etc all transitioned to 11.5" barrels. An 11.5" carbine is only about 4% longer than a 10.3" carbine. However that additional barrel length yields an ~40% increase in dwell time. This translates into less overgassing, increased component service life, and a more reliable weapon. Regarding all the comments about 11.5" vs 14.5", I don't think the velocity difference is insignificant. There were some folks making outrageous claims that 14.5" only offered like 30+ FPS over a 11.5", which is just flat out false. In a real-world application, extending effective range by another 150 meters (just spit balling) isn't insignificant. Significant enough (velocity and size) to justify having both an 11.5" and 14.5" in inventory? Barrel, rail, and gas tube are all different. |
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Posted: 3/19/2021 4:12:05 PM EDT
[#24]
Quote HistoryOriginally Posted By SMFdarkangel: It's likely the same reason that KAC, BCM, etc all transitioned to 11.5" barrels. An 11.5" carbine is only about 4% longer than a 10.3" carbine. However that additional barrel length yields an ~40% increase in dwell time. This translates into less overgassing, increased component service life, and a more reliable weapon. Regarding all the comments about 11.5" vs 14.5", I don't think the velocity difference is insignificant. There were some folks making outrageous claims that 14.5" only offered like 30+ FPS over a 11.5", which is just flat out false. In a real-world application, extending effective range by another 150 meters (just spit balling) isn't insignificant. I would be interested in seeing how this works out with different loads. Someone should do some chrono work with both barrel lengths. I have 5.56 barrels both 11.5 and 14.5, but I dont have a chronograph or relevant loads on hand. |
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Posted: 3/19/2021 6:17:39 PM EDT
[#25]
Suppressed SBR Velocity Tests
That thread has some interesting data, 14.5" and 11.5" barrels are featured in the respective data sets. |
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Posted: 3/19/2021 8:18:13 PM EDT
[#26]
Quote HistoryOriginally Posted By RobNC: That sucks. The 13.5 I received last week was NSN roll marked. The 10.5 I got this week was not. Does the 10.5 inch MK16 rail have a NSN? |
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Posted: 3/19/2021 8:39:47 PM EDT
[#27]
Quote HistoryOriginally Posted By WTFShane: Does the 10.5 inch MK16 rail have a NSN? I haven’t seen any yet & the one I bought back in September didn’t. |
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Posted: 3/19/2021 8:46:16 PM EDT
[Last Edit: Badger52]
[#28]
Quote HistoryOriginally Posted By nate_the_great: Suppressed SBR Velocity Tests That thread has some interesting data, 14.5" and 11.5" barrels are featured in the respective data sets. Some UN-suppressed UN-scientific numbers for you with Mk.262, Mk.318, and M193 (shooter n=1, my stuff, my chrono) 11.5" 2484 2723 2825 14.5" 2620 2973 3103 Have fun. :) |
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Posted: 3/19/2021 8:52:56 PM EDT
[#29]
Quote HistoryOriginally Posted By Badger52: Some UN-suppressed UN-scientific numbers for you with Mk.262, Mk.318, and M193 (shooter n=1, my stuff, my chrono) 11.5" 2484 2723 2825 14.5" 2620 2973 3103 Have fun. :) Same brand and model of barrel? |
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Posted: 3/19/2021 9:25:01 PM EDT
[#30]
Originally Posted By Dyzastr:
Heads up for any TX resident looking to score a surefire RC. Saw one posted in the NFA section of the EE. No connection to seller. Just wanted to put that out there. |
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Posted: 3/20/2021 12:46:14 AM EDT
[Last Edit: 03CR]
[#31]
What mounts are we seeing with Razor 1-6s other than Geissele? Any Badger C1s?
ETA: In the wild, I mean. |
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Posted: 3/20/2021 6:02:59 AM EDT
[#32]
Quote HistoryOriginally Posted By 03CR: What mounts are we seeing with Razor 1-6s other than Geissele? Any Badger C1s? ETA: In the wild, I mean. |
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Posted: 3/20/2021 7:42:36 AM EDT
[#33]
Quote HistoryOriginally Posted By pezboytate: Same brand and model of barrel? Of course not, sir.  The 14.5 is a BA mid-length performance series, the 11.5 is a PSA upper. Numbers are just offered because someone seemed curious about diifferences in the 3". |
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Posted: 3/20/2021 7:57:43 AM EDT
[#34]
Quote HistoryOriginally Posted By Badger52: Of course not, sir. The 14.5 is a BA mid-length performance series, the 11.5 is a PSA upper. Numbers are just offered because someone seemed curious about diifferences in the 3". I would be in a similar situation with barrels. 14.5 is a Geissele and 11.5 is a PSA. I will put a Geissele complete 11.5 SD upper on the short gun if they ever make them again (or a Geissele 11.5" URGI near-clone if that somehow happens first). I do appreciate the numbers provided. I was really curious about MK262 and M855A1. The M855A1 is probably most relevant to this discussion, so we will just have to wait for that. I'm also curious about Frontier 75 gr. HPBT, but thats more for personal reasons. |
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FL, USA
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Posted: 3/20/2021 1:04:04 PM EDT
[Last Edit: Hugogos]
[#35]
Quote HistoryOriginally Posted By LsuJon: Kac, larue, adm, pretty sure I've seen vortex mount. C1 I recall seeing is on a cqbr w/ a 1-10 Add scalarworks https://ibb.co/pxv03Zs |
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Posted: 3/21/2021 3:20:49 PM EDT
[#36]
Quote HistoryOriginally Posted By WTFShane: Does the 10.5 inch MK16 rail have a NSN? Quote HistoryOriginally Posted By WTFShane: Originally Posted By RobNC: That sucks. The 13.5 I received last week was NSN roll marked. The 10.5 I got this week was not. Does the 10.5 inch MK16 rail have a NSN? Mine is completely unmarked except for the slot numbers on the Picatinny rail. Not even a Geissele marking. |
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Posted: 3/21/2021 3:58:58 PM EDT
[#37]
Quote HistoryOriginally Posted By 03CR: For those looking for NSN marked rails, I got my blem MK16 in today and it's not NSN marked. Just my luck! BTW: WhatPriceGlory.com has the Rhodesian Combat Shirts for $45  Attached File |
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Posted: 3/23/2021 9:02:29 PM EDT
[#38]
Quote HistoryOriginally Posted By RobNC: That sucks. The 13.5 I received last week was NSN roll marked. The 10.5 I got this week was not. I got my 13.5 in today and it too was NSN-marked. |
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Posted: 3/23/2021 9:15:18 PM EDT
[Last Edit: Bastogne101]
[#39]
The 13.5 I got last week was NSN marked. I was actually surprised.
It was not a blemula but does have a streak. |
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Posted: 3/23/2021 9:38:56 PM EDT
[#40]
So I decided to take my chances and also order a non blem. It arrived today and is NSN marked.
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Posted: 3/23/2021 10:18:40 PM EDT
[Last Edit: FreefallRet]
[#41]
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Posted: 3/23/2021 10:58:15 PM EDT
[#42]
Quote HistoryOriginally Posted By FREEFALLE7: Rails in stock if you need one. https://www.brownells.com/rifle-parts/forend-amp-handguard-parts/handguards-amp-rails/ar-15-mk16-13-5-super-modular-rail-m-lok-ddc-sku100041113-137889-251305.aspx Thanks for the heads up! |
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Posted: 3/23/2021 11:05:04 PM EDT
[#43]
Anyone have a lead on the correct spec DD barrel?
I gather they're difficult to find and sell out fast - any online retailers preferred? |
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Posted: 3/23/2021 11:27:05 PM EDT
[#44]
Quote HistoryOriginally Posted By wayfaerer320: Anyone have a lead on the correct spec DD barrel? I gather they're difficult to find and sell out fast - any online retailers preferred? Get on the in-stock notification list at DD directly. |
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Posted: 3/24/2021 2:25:24 AM EDT
[#45]
Just need another NSN marked ACH. Are they being restocked at all? Haven’t had a need for one, but building a 11.5 URGI & it’s the finishing touch.
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USA
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Posted: 3/24/2021 12:01:42 PM EDT
[#46]
Anyone got a line on proper stripped colt uppers? Last piece I need.
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Posted: 3/24/2021 1:39:43 PM EDT
[#47]
Quote HistoryOriginally Posted By Conner378: https://www.ar15.com/media/mediaFiles/448813/40507D4F-EF1A-42FA-8449-E327481D50A1_jpe-1869950.JPGhttps://www.ar15.com/media/mediaFiles/448813/7C0501CB-D560-4A05-802F-DA1FBB59F236_jpe-1869951.JPGhttps://www.ar15.com/media/mediaFiles/448813/910D95A8-1E34-4933-928D-74B7AC820446_jpe-1869952.JPGhttps://www.ar15.com/media/mediaFiles/448813/751DAED2-DF7C-421A-B7E8-D6AB6E127216_jpe-1869953.JPG I don't understand why someone would mount an optic on their rail? Never going to convince me that it is a good idea. |
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Posted: 3/24/2021 1:41:41 PM EDT
[#48]
Quote HistoryOriginally Posted By qmikep: Anyone got a line on proper stripped colt uppers? Last piece I need. See if thoroughbred armament has what you want |
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Posted: 3/24/2021 1:43:20 PM EDT
[#49]
I ordered a blem Sunday, order is still processing I may contact G if it doesn’t update after today
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Posted: 3/24/2021 3:47:04 PM EDT
[#50]
Quote HistoryOriginally Posted By dempsy1: I ordered a blem Sunday, order is still processing I may contact G if it doesn’t update after today I'll be posting my blem for sale soon if you don't want to wait longer with Geissele. |
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