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Posted: 10/9/2020 8:35:00 AM EDT
[Last Edit: officerX]
[#1]
Quote HistoryOriginally Posted By AWZ1287: That looks great. I may have to switch out my lower, to a clone lower. It’s really just going to be a placeholder for now. I have an 80% lower being engraved with the FN markings. Once it’s ready to go I’ll be swapping them out. |
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OH, USA
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Posted: 10/9/2020 9:56:07 PM EDT
[#2]
How are the uppers on the A4's made by FN marked? I have seen some that look they are just square forge and split A with no F. I imagine they are marked m4 on the front but did all the FN M16's have F marked uppers? I just got a killer deal on a Kac M5 ras and I am finishing up my build.
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Posted: 10/9/2020 10:23:12 PM EDT
[#3]
Quote HistoryOriginally Posted By OTIS-Driftwood14: How are the uppers on the A4's made by FN marked? I have seen some that look they are just square forge and split A with no F. I imagine they are marked m4 on the front but did all the FN M16's have F marked uppers? I just got a killer deal on a Kac M5 ras and I am finishing up my build. M16A4s don't have M4 upper receivers and they do have F FSBs. |
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Posted: 10/10/2020 12:51:56 AM EDT
[#4]
Quote HistoryOriginally Posted By OTIS-Driftwood14: How are the uppers on the A4's made by FN marked? I have seen some that look they are just square forge and split A with no F. I imagine they are marked m4 on the front but did all the FN M16's have F marked uppers? I just got a killer deal on a Kac M5 ras and I am finishing up my build. FN uppers are marked with a F or cage code. I've seen cage codes with raised letters and dot matrix. The upper will not have a M4 mark as that upper has carbine ramps. It will be unmarked with rifle ramps to go with the rifle ramped barrel extension of the 20" barrel. If you use a M4 upper with its carbine ramps and a rifle ramped barrel extension expect about 3% failures to feed. CD |
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OH, USA
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Posted: 10/10/2020 11:13:45 AM EDT
[Last Edit: OTIS-Driftwood14]
[#5]
Quote HistoryOriginally Posted By Combat_Diver: FN uppers are marked with a F or cage code. I've seen cage codes with raised letters and dot matrix. The upper will not have a M4 mark as that upper has carbine ramps. It will be unmarked with rifle ramps to go with the rifle ramped barrel extension of the 20" barrel. If you use a M4 upper with its carbine ramps and a rifle ramped barrel extension expect about 3% failures to feed. CD Quote HistoryOriginally Posted By Combat_Diver: Originally Posted By OTIS-Driftwood14: How are the uppers on the A4's made by FN marked? I have seen some that look they are just square forge and split A with no F. I imagine they are marked m4 on the front but did all the FN M16's have F marked uppers? I just got a killer deal on a Kac M5 ras and I am finishing up my build. FN uppers are marked with a F or cage code. I've seen cage codes with raised letters and dot matrix. The upper will not have a M4 mark as that upper has carbine ramps. It will be unmarked with rifle ramps to go with the rifle ramped barrel extension of the 20" barrel. If you use a M4 upper with its carbine ramps and a rifle ramped barrel extension expect about 3% failures to feed. CD Oh, I thought the newer M16's had M4 feed ramps. Good thing I checked on here first. I'll definitely match the feed ramps to the barrel extension, rifle ramps are probably harder to find though. F marked uppers are hard to get, I will probably have to settle for a non marked one. The cage code is probably different than Colt's so a Colt upper wouldn't work. Not to mention Colt Cage code uppers have M4 feed ramps. |
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Posted: 10/10/2020 11:30:49 AM EDT
[#6]
Quote HistoryOriginally Posted By OTIS-Driftwood14: Oh, I thought the newer M16's had M4 feed ramps. Good thing I checked on here first. I'll definitely match the feed ramps to the barrel extension, rifle ramps are probably harder to find though. F marked uppers are hard to get, I will probably have to settle for a non marked one. The cage code is probably different than Colt's so a Colt upper wouldn't work. Not to mention Colt Cage code uppers have M4 feed ramps. Quote HistoryOriginally Posted By OTIS-Driftwood14: Originally Posted By Combat_Diver: Originally Posted By OTIS-Driftwood14: How are the uppers on the A4's made by FN marked? I have seen some that look they are just square forge and split A with no F. I imagine they are marked m4 on the front but did all the FN M16's have F marked uppers? I just got a killer deal on a Kac M5 ras and I am finishing up my build. FN uppers are marked with a F or cage code. I've seen cage codes with raised letters and dot matrix. The upper will not have a M4 mark as that upper has carbine ramps. It will be unmarked with rifle ramps to go with the rifle ramped barrel extension of the 20" barrel. If you use a M4 upper with its carbine ramps and a rifle ramped barrel extension expect about 3% failures to feed. CD Oh, I thought the newer M16's had M4 feed ramps. Good thing I checked on here first. I'll definitely match the feed ramps to the barrel extension, rifle ramps are probably harder to find though. F marked uppers are hard to get, I will probably have to settle for a non marked one. The cage code is probably different than Colt's so a Colt upper wouldn't work. Not to mention Colt Cage code uppers have M4 feed ramps. The confusion is that commercial Colt AR15A4s have M4 feedramps and no F marked FSB. There are factory FN M16A4 URGs available. Just buy one of those. |
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PA, USA
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Posted: 10/10/2020 12:47:06 PM EDT
[Last Edit: HaveBlue83]
[#7]
the only URG ill buy is real deal....and boyyyy its nice!
FN   |
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OH, USA
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Posted: 10/10/2020 2:32:28 PM EDT
[Last Edit: OTIS-Driftwood14]
[#8]
Quote HistoryOriginally Posted By pezboytate: The confusion is that commercial Colt AR15A4s have M4 feedramps and no F marked FSB. There are factory FN M16A4 URGs available. Just buy one of those. I saw those at a few different sites but they were all out of stock. I really wanted one, I ordered an FN M16 barrel and a Kac M5 ras, so it's too late now. All of a sudden I caught the M16 bug, my clone collection isn't really complete without it. And the M16A4 is a beautiful rifle. |
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Posted: 10/10/2020 5:45:39 PM EDT
[Last Edit: 3ACR_Scout]
[#9]
Originally Posted By Combat_Diver: FN uppers are marked with a F or cage code. I've seen cage codes with raised letters and dot matrix. The upper will not have a M4 mark as that upper has carbine ramps. It will be unmarked with rifle ramps to go with the rifle ramped barrel extension of the 20" barrel. Originally Posted By pezboytate: The confusion is that commercial Colt AR15A4s have M4 feedramps and no F marked FSB. There are factory FN M16A4 URGs available. Just buy one of those. @OTIS-Driftwood14 may also be confused because he may have seen an FN Military Collector M16A4. While some of them were more correct than others, I know a number of people here reported that at least one batch of the Military Collector rifles came with a Brass Aluminum square forge code on the upper receiver but no "F" marking. The surplus FN uppers are correct, of course, and the vast majority seem to have a stamped F and Cerro keyhole or Brass Aluminum square. For what it's worth, early FN M16A4s had a raised F on the upper, which I posted photos of here in this thread a while back. Those seem to be unobtainable in the commercial market, but I'm hoping I can find a surplus example some day. |
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OH, USA
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Posted: 10/10/2020 7:45:16 PM EDT
[Last Edit: OTIS-Driftwood14]
[#10]
Quote HistoryOriginally Posted By 3ACR_Scout: @OTIS-Driftwood14 may also be confused because he may have seen an FN Military Collector M16A4. While some of them were more correct than others, I know a number of people here reported that at least one batch of the Military Collector rifles came with a Brass Aluminum square forge code on the upper receiver but no "F" marking. The surplus FN uppers are correct, of course, and the vast majority seem to have a stamped F and Cerro keyhole or Brass Aluminum square. For what it's worth, early FN M16A4s had a raised F on the upper, which I posted photos of here in this thread a while back. Those seem to be unobtainable in the commercial market, but I'm hoping I can find a surplus example some day. Quote HistoryOriginally Posted By 3ACR_Scout: Originally Posted By Combat_Diver: FN uppers are marked with a F or cage code. I've seen cage codes with raised letters and dot matrix. The upper will not have a M4 mark as that upper has carbine ramps. It will be unmarked with rifle ramps to go with the rifle ramped barrel extension of the 20" barrel. Originally Posted By pezboytate: The confusion is that commercial Colt AR15A4s have M4 feedramps and no F marked FSB. There are factory FN M16A4 URGs available. Just buy one of those. @OTIS-Driftwood14 may also be confused because he may have seen an FN Military Collector M16A4. While some of them were more correct than others, I know a number of people here reported that at least one batch of the Military Collector rifles came with a Brass Aluminum square forge code on the upper receiver but no "F" marking. The surplus FN uppers are correct, of course, and the vast majority seem to have a stamped F and Cerro keyhole or Brass Aluminum square. For what it's worth, early FN M16A4s had a raised F on the upper, which I posted photos of here in this thread a while back. Those seem to be unobtainable in the commercial market, but I'm hoping I can find a surplus example some day. That's exactly it, thanks for clarifying. I saw some F marked uppers in stock somewhere a few weeks ago but can't remember exactly where, maybe Thoroughbred Armament. I wish I would of bought one, but at the time I didn't even plan on building an M16 clone. I'm sure they were not the raised ones though, I think they were 229$. |
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TX, USA
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Posted: 10/10/2020 10:42:02 PM EDT
[#11]
I have a fn 20” barrel with m4 feed ramps. Fnmi marked. Would these ramps have been done at factory or by an individual? I put on a fn m4 marked upper and it works fine.
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Posted: 10/11/2020 12:49:28 AM EDT
[#12]
Quote HistoryOriginally Posted By Sleepym4: I have a fn 20” barrel with m4 feed ramps. Fnmi marked. Would these ramps have been done at factory or by an individual? I put on a fn m4 marked upper and it works fine. What does your barrel extension have?  CD |
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TX, USA
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Posted: 10/11/2020 1:37:50 AM EDT
[#13]
  I think it's a m4 extension with m4 upper. Unless if it's a rifle extension that was modified by the previous owner? |
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Posted: 10/11/2020 11:08:10 AM EDT
[#14]
Quote HistoryOriginally Posted By Sleepym4: https://i.imgur.com/ye5rrxx.jpg https://i.imgur.com/3N9vQzw.jpg I think it's a m4 extension with m4 upper. Unless if it's a rifle extension that was modified by the previous owner? Those are all m4 ramps. |
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NE, USA
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Posted: 10/12/2020 5:17:29 PM EDT
[#15]
I have used US Anodizing a couple of times for builds but they're all booked up for now. Who is the "go to" for finish anodizing AFTER to finish an 80% lower in a nice black color?
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LA, USA
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Posted: 10/12/2020 8:40:00 PM EDT
[#16]
Quote HistoryOriginally Posted By Sleepym4: https://i.imgur.com/ye5rrxx.jpg https://i.imgur.com/3N9vQzw.jpg I think it's a m4 extension with m4 upper. Unless if it's a rifle extension that was modified by the previous owner? I have an FN barrel that is M16A4 in every way, BUT it has an M4 extension. The markings (stampings) are identical to yours, but in place of the “FNMI”, it is stamped with the stylized FN logo. I also have an M16A4 barrel that is stamped with FN’s cage code. It, of course, does not have an M4 extension. |
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Posted: 10/14/2020 11:00:24 PM EDT
[#17]
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Posted: 10/16/2020 4:55:10 PM EDT
[#18]
If anyone is looking for a USMC marked KAC micro rear sight, email Big Chris.
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Posted: 10/16/2020 6:39:04 PM EDT
[#19]
Quote HistoryOriginally Posted By officerX: If anyone is looking for a USMC marked KAC micro rear sight, email Big Chris. Big Chris? |
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Posted: 10/16/2020 6:40:29 PM EDT
[#20]
Quote HistoryOriginally Posted By AWZ1287: Big Chris? Shark Arms |
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Posted: 10/16/2020 6:48:19 PM EDT
[#21]
Quote HistoryOriginally Posted By officerX: Shark Arms Thanks, how much is he charging? |
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Posted: 10/16/2020 7:09:23 PM EDT
[#22]
Quote HistoryOriginally Posted By AWZ1287: Thanks, how much is he charging? $108 shipped |
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Posted: 10/16/2020 7:18:56 PM EDT
[#23]
Quote HistoryOriginally Posted By officerX: $108 shipped Thanks, I just sent him a email. Is the sharkarmory556 Gmail the correct email address. |
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Posted: 10/16/2020 7:22:06 PM EDT
[#24]
Quote HistoryOriginally Posted By AWZ1287: Thanks, I just sent him a email. Is the sharkarmory556 Gmail the correct email address. Yes  Attached File |
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Posted: 10/16/2020 7:24:03 PM EDT
[#25]
Quote HistoryOriginally Posted By officerX: Yes https://www.AR15.Com/media/mediaFiles/335460/1FBC8C52-E52A-46B6-9C3C-A12D1A4EBE3B_jpe-1639338.JPG Thanks |
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Posted: 10/16/2020 9:18:56 PM EDT
[Last Edit: AWZ1287]
[#26]
What acog mounts were used by the usmc?
Were the Larue LT681 ACOG mounts ever issued? |
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NE, USA
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Posted: 10/17/2020 1:15:33 AM EDT
[#27]
Quote HistoryOriginally Posted By officerX: If anyone is looking for a USMC marked KAC micro rear sight, email Big Chris. I thought it was posted here that all of those were stolen per KAC? |
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Posted: 10/17/2020 1:51:40 AM EDT
[#28]
Quote HistoryOriginally Posted By wissota4:  https://www.AR15.Com/media/mediaFiles/384425/20201006_093905_jpg-1622600.JPG What's your plan on coating it? i have a few and don't want to wash out the lettering |
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Posted: 10/17/2020 11:24:48 AM EDT
[Last Edit: wissota4]
[#29]
Quote HistoryOriginally Posted By tweeter: What's your plan on coating it? i have a few and don't want to wash out the lettering That all depends on the engraver. You need to go deeper to allow for ano to displace about .002. I like anodizing so I just look around for deals there. If they know what they're doing they can keep it pretty light to preserve the engraving too. |
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Posted: 10/18/2020 9:52:35 AM EDT
[Last Edit: AWZ1287]
[#30]
Got a kac rear sight on order from shark Arms. Thanks for the heads up, @officerX
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Posted: 10/18/2020 10:13:21 AM EDT
[#31]
I backordered a ta31rco-a4cp from kenzie's optics, there's no eta though.
I already have the kac rails, and bfg sling. I should be all set once I receive the ACOG, not sure if I am going to keep the stock mount or try to find a larue LT622. |
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Posted: 10/18/2020 10:36:08 AM EDT
[#32]
Quote HistoryOriginally Posted By AWZ1287: I backordered a ta31rco-a4cp from kenzie's optics, there's no eta though. I already have the kac rails, and bfg sling. I should be all set once I receive the ACOG, not sure if I am going to keep the stock mount or try to find a larue LT622. I think the ACOG is the only thing I lack at this point, besides milling out my 80% lower. |
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Posted: 10/18/2020 10:45:44 AM EDT
[#33]
Quote HistoryOriginally Posted By officerX: I think the ACOG is the only thing I lack at this point, besides milling out my 80% lower. Yeah, there was one on the EE a couple of days ago, but I didn't get to it in time. So I just went ahead and ordered it from kenzie's. Still haven't decided if I want to go with a clone lower or not. |
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Posted: 10/19/2020 9:17:02 AM EDT
[#34]
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Posted: 10/19/2020 12:03:15 PM EDT
[#35]
Quote HistoryOriginally Posted By LavaDomane: I have used US Anodizing a couple of times for builds but they're all booked up for now. Who is the "go to" for finish anodizing AFTER to finish an 80% lower in a nice black color? did you get a lead time? or did they just tell you to go away? |
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Posted: 10/21/2020 8:53:58 PM EDT
[#36]
My upper parts show up Friday and my psa a4 lower Monday. I plan on getting a m5 from shark and I already have a salty acog. I just have a few questions, what slings are acceptable, and what mag pouch is the closest?
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Posted: 10/21/2020 9:17:08 PM EDT
[#37]
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Posted: 10/22/2020 12:27:17 PM EDT
[Last Edit: officerX]
[#38]
Back in stock!
Trijicon ACOG 4x32 USMC Rifle Combat Optic TA31RCO-A4CP, $1,329 Also here: Trijicon ACOG 4x32 USMC Rifle Combat Optic TA31RCO-A4CP, $1,329 They allow you to make an offer, like eBay. |
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Posted: 10/22/2020 8:32:22 PM EDT
[#39]
Sweet, thanks. Pics soon!
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Posted: 10/24/2020 2:29:54 PM EDT
[#40]
LT-799 mount in the EE upper receiver parts - new section
(not mine) |
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Posted: 10/24/2020 2:43:28 PM EDT
[Last Edit: officerX]
[#41]
Quote HistoryOriginally Posted By C6H12O6: LT-799 mount in the EE upper receiver parts - new section (not mine) Why can’t I find this on LaRue’s site? Between that one and the GDI mount, which one would be more clone correct? |
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Posted: 10/24/2020 3:00:57 PM EDT
[#42]
Quote HistoryOriginally Posted By officerX: Why can’t I find this on LaRue’s site? Between that one and the GDI mount, which one would be more clone correct? I don’t believe LaRue sold these to anyone besides the USMC. Someone else will have to answer about which one’s more correct. I got in on GDIs when they were on sale for like $35 a few years ago. |
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Posted: 10/24/2020 3:02:26 PM EDT
[#43]
Quote HistoryOriginally Posted By C6H12O6: I don’t believe LaRue sold these to anyone besides the USMC. Someone else will have to answer about which one’s more correct. I got in on GDIs when they were on sale for like $35 a few years ago. I bought a used GDI on the EE a week or 2 ago for $75. I’ll use it if it’s more clone correct but I am partial to LaRue mounts. |
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Posted: 10/24/2020 3:04:49 PM EDT
[#44]
Quote HistoryOriginally Posted By officerX: Why can’t I find this on LaRue’s site? Between that one and the GDI mount, which one would be more clone correct? Going thru 32 ACOGs (31 ea TA01NSN and 1 ea TA31) yesterday for turnin. 30 had the Aimpoint twin thumbscrew mount and two had the ARMS quick release mount. These would have been off SOF/TPE M4A1 guns. CD |
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Posted: 10/24/2020 3:06:43 PM EDT
[#45]
Quote HistoryOriginally Posted By Combat_Diver: Going thru 32 ACOGs (31 ea TA01NSN and 1 ea TA31) yesterday for turnin. 30 had the Aimpoint twin thumbscrew mount and two had the ARMS quick release mount. These would have been off SOF/TPE M4A1 guns. CD Aimpoint mount??? |
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Posted: 10/24/2020 3:19:26 PM EDT
[#46]
Quote HistoryOriginally Posted By officerX: Aimpoint mount??? Quote HistoryOriginally Posted By officerX: Originally Posted By Combat_Diver: Going thru 32 ACOGs (31 ea TA01NSN and 1 ea TA31) yesterday for turnin. 30 had the Aimpoint twin thumbscrew mount and two had the ARMS quick release mount. These would have been off SOF/TPE M4A1 guns. CD Aimpoint mount??? He's talking about the TA51. Irrelevant though since you seem to be asking about USMC issued mounts. |
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Posted: 10/24/2020 5:05:55 PM EDT
[#47]
Quote HistoryOriginally Posted By C6H12O6: LT-799 mount in the EE upper receiver parts - new section (not mine) What's the difference between the LT799 and the LT622? |
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Posted: 10/24/2020 5:07:45 PM EDT
[#48]
Quote HistoryOriginally Posted By officerX: Back in stock! Trijicon ACOG 4x32 USMC Rifle Combat Optic TA31RCO-A4CP, $1,329 Also here: Trijicon ACOG 4x32 USMC Rifle Combat Optic TA31RCO-A4CP, $1,329 They allow you to make an offer, like eBay. Has anyone ordered through scope list, how much Lower do they go with the make an offer? |
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Posted: 10/24/2020 5:13:49 PM EDT
[#49]
Quote HistoryOriginally Posted By AWZ1287: Has anyone ordered through scope list, how much Lower do they go with the make an offer? I made an offer. IIRC, the link the sent me to buy, was at the regular price (I didn’t buy). I’m waiting for some other places to get them in. $1,100 is the lowest price I found, but OOS. |
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Posted: 10/24/2020 5:21:18 PM EDT
[#50]
Quote HistoryOriginally Posted By officerX: I made an offer. IIRC, the link the sent me to buy, was at the regular price (I didn’t buy). I’m waiting for some other places to get them in. $1,100 is the lowest price I found, but OOS. OK, I will just stick with the backorder I have with kenzie's. Hopefully they come in stock at kenzie's, being other retailers are getting them back. |
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