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M4 SOPMOD Picture Thread (Block I, 1.5/PR, II) (Page 234 of 240)
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Originally Posted By JTM20: Very cool. I've seen a few Block II prototype Daniel Defense builds but this'll be the first A.R.M.S. one I've seen. The main drawback of the #50M-CV and URXII were the M203 mounting solutions, both A.R.M.S. and KAC entered standard carbine length rails into the trials which meant they had to use separate brackets that clamped onto the M203 and slotted into the rail to free-float it. It works well enough, but if you lose or damage one of the brackets you can no longer install the M203, and the DD system was both more rigid and simpler to install, which was one of the primary reasons it ended up winning. |
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Originally Posted By thatARMSguy: From the little documentation I've gathered, the #50M-CV was well liked as a standalone handguard but in terms of the actual contract requirements it and the URX II just weren't as good as the DD rail. Like the normal A.R.M.S. rails it used the standard milspec barrel nut and didn't require the handguard retainer cap to be removed, so armorers liked them for their ease of installation (at its simplest, you could just cut the delta ring off with a Dremel and install the rail with no further gunsmithing necessary), and it was the lightest option in the trials as it only weighs about 8.5-9 oz. The downside is that the actual installation process involves evenly torquing down six screws and with the wide tolerances of milspec barrel nuts it isn't uncommon to end up with the rail tilted up or down, so you need to use some sort of attachment clamped across both the rail and receiver to hold it steady while you install it or use the optional #50-CV03 Swan Sleeve to add some extra support. It's pretty solid once you do get it clamped on but the initial installation is annoying. The main drawback of the #50M-CV and URXII were the M203 mounting solutions, both A.R.M.S. and KAC entered standard carbine length rails into the trials which meant they had to use separate brackets that clamped onto the M203 and slotted into the rail to free-float it. It works well enough, but if you lose or damage one of the brackets you can no longer install the M203, and the DD system was both more rigid and simpler to install, which was one of the primary reasons it ended up winning. |
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Originally Posted By LsuJon: Did the trial #50M-CV differ from the civilian ones in any way other than the color? As in how can we tell the PJs' rail is a trial rail?  The second batch was produced from early 2006-mid 2007, and added retaining clips and wire to the barrel yoke screws. The winged Swan logo was introduced sometime in either late 2006 or early 2007, so you'll see both on this pattern, albeit rarely (pic is not my own).  In mid-2007 the patent was formally granted and the associated patent numbers were engraved on a flattened out portion of the upper right side below the rail, as well as the flat for the patent pending marking being removed (also not my pic).  Of the few pics of FDE #50M-CVs out there, only one shows a pre-wire rail, several show the wired patent pending version, and a few show the patented version. The official Crane report of the RIS II trials in 2006 shows the wired patent pending version, which judging by the time period they were introduced and when the testing took place I assume is the correct one. I know they added the retaining wires by request, as the screws have a habit of jumping away from the rail and disappearing when trying to install the yoke, so this would make sense for the updated trials version.  The patent marked version wasn't released until after the RIS II trials had already concluded, so that specific version would not have been used in testing. The rail on the PJ's rifle does seem to have the flat milled for the patent info however, which would place it as a 2007-2009 unit purchase (the FDE products were discontinued circa 2010 or so).  In short, neither my rail nor the rail in the reference pics would have been used during the RIS II trials, however the difference is only in markings. I felt it was relevant to this thread given that this is probably the closest we'll ever get to an actual trials rail, all 4-5 FDE #50M-CVs I've seen in private hands have come from these unit purchases and all have the patent markings. |
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Originally Posted By thatARMSguy: Was the PEQ-15A (DBAL-A2) ever used by SOCOM or just infantry/National Guard units? https://www.gettyimages.com/detail/news-photo/navy-seal-looks-towards-insurgent-movements-from-the-news-photo/73058383 https://www.gettyimages.com/detail/news-photo/navy-seals-and-marines-move-across-the-rooftop-of-an-news-photo/73058415 |
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Originally Posted By chocolatechip: https://www.gettyimages.com/detail/news-photo/navy-seal-looks-towards-insurgent-movements-from-the-news-photo/73058383 https://www.gettyimages.com/detail/news-photo/navy-seals-and-marines-move-across-the-rooftop-of-an-news-photo/73058415 |
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Originally Posted By Combat_Diver: Classroom prepped for M4 Maintainers class tomorrow. We'll see what we build. All parts just about there for any variant of Uncles guns. https://www.ar15.com/media/mediaFiles/32677/IMG_7100_jpeg-3429409.JPG I'm sure you've answered this elsewhere but I can't find it- are you using clamshells for barrel install or reaction rod? Just wondering what you're preferred tools are for barrel and muzzle device install. |
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Originally Posted By 71firebird400: I'm sure you've answered this elsewhere but I can't find it- are you using clamshells for barrel install or reaction rod? Just wondering what you're preferred tools are for barrel and muzzle device install. @71firebird400 PRI receiver block  Attached File Attached File |
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24'
Afghanistan: 09,10,11',14',17',18',19',20'&21'
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24'
Afghanistan: 09,10,11',14',17',18',19',20'&21'
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Originally Posted By thatARMSguy: The civilian ones are identical, the FDE colored parts never reached the commercial market so grey ones are far more common but share identical design traits. There's three versions of the #50M-CV, technically the one I have isn't correct either for a trial gun and neither is the one the PJ has. The first batch of #50M-CVs to be produced was in mid 2005, it's characterized by a wingless Swan logo and "PAT. PEND." engraved in a recess above the barrel yoke screws on the right side. https://i.imgur.com/VPqks32.jpeg The second batch was produced from early 2006-mid 2007, and added retaining clips and wire to the barrel yoke screws. The winged Swan logo was introduced sometime in either late 2006 or early 2007, so you'll see both on this pattern, albeit rarely (pic is not my own). https://i.imgur.com/YT9OlBH.jpeg In mid-2007 the patent was formally granted and the associated patent numbers were engraved on a flattened out portion of the upper right side below the rail, as well as the flat for the patent pending marking being removed (also not my pic). https://i.imgur.com/PC4vMDU.jpeg Of the few pics of FDE #50M-CVs out there, only one shows a pre-wire rail, several show the wired patent pending version, and a few show the patented version. The official Crane report of the RIS II trials in 2006 shows the wired patent pending version, which judging by the time period they were introduced and when the testing took place I assume is the correct one. I know they added the retaining wires by request, as the screws have a habit of jumping away from the rail and disappearing when trying to install the yoke, so this would make sense for the updated trials version. https://i.imgur.com/6b1669D.png The patent marked version wasn't released until after the RIS II trials had already concluded, so that specific version would not have been used in testing. The rail on the PJ's rifle does seem to have the flat milled for the patent info however, which would place it as a 2007-2009 unit purchase (the FDE products were discontinued circa 2010 or so). https://i.imgur.com/bpvQ4eX.png In short, neither my rail nor the rail in the reference pics would have been used during the RIS II trials, however the difference is only in markings. I felt it was relevant to this thread given that this is probably the closest we'll ever get to an actual trials rail, all 4-5 FDE #50M-CVs I've seen in private hands have come from these unit purchases and all have the patent markings. so the PJs' is just a #50M-CV, possibly personal or unit purchased, correct? |
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Originally Posted By LsuJon: Appreciate the info! I asked cause I was like "how can you tell that thing is FDE under the paint!!?" lol. so the PJs' is just a #50M-CV, possibly personal or unit purchased, correct? |
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Originally Posted By AK47_COMMBLOC: where can i buy or have made the sticker label thats on the front right hand side of the usmc acog scopes? it seems to be a bdc dope chart or sight in chart of some sort. |
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Anyone know what the name of this stock is? I believe it was used on some det 1 carbines Attached File |
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I have this stock and they were testing this out and giving it to people. I liked it the concept. Attached File Attached File |
“Liberty and love
These two I must have.
For my love, I’ll sacrifice
My life.
For liberty, I’ll sacrifice
My love.”
Petofi Sándor
These two I must have.
For my love, I’ll sacrifice
My life.
For liberty, I’ll sacrifice
My love.”
Petofi Sándor
"All welchers should be removed from the EE".-Aimless
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Originally Posted By Jozsi: I have this stock and they were testing this out and giving it to people. I liked it the concept. https://www.ar15.com/media/mediaFiles/313126/8jf5njjxhk4c1_jpeg-3496460.JPG https://www.ar15.com/media/mediaFiles/313126/a-buddy-of-mine-thought-this-up-needless-3496462.JPG Any chance you have experience with the magpul m93 as well? I want to do a det 1 build, but can’t decide which stock; though it was hard to find info on this one without the name(kept searching for clubfoot which was just giving results for the vltor stock) |
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Originally Posted By ChemTrailZ: Any chance you have experience with the magpul m93 as well? I want to do a det 1 build, but can’t decide which stock; though it was hard to find info on this one without the name(kept searching for clubfoot which was just giving results for the vltor stock) I've got an ergo 93 stock and like it quite a bit. |
[NO TEXT]
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Originally Posted By Jozsi: I have this stock and they were testing this out and giving it to people. I liked it the concept. https://www.ar15.com/media/mediaFiles/313126/8jf5njjxhk4c1_jpeg-3496460.JPG https://www.ar15.com/media/mediaFiles/313126/a-buddy-of-mine-thought-this-up-needless-3496462.JPG I always wondered why this concept didn't gain any traction. For the way we typically shoulder an AR, it seems a stock like this could be advantageous. |
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I believe this is a ranger from early GWOT. I’m wondering if anyone can identify the rear sling attachment? Does not appear to be a cqd, and am curious if anyone knows or can identify it? *edit* don't know why the pic is so small, but appears to be single sided or center hold, not entirely sure Attached File Attached File |
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Originally Posted By thatARMSguy: Did the PVS-17 PIP upgrade concept ever go anywhere or did socom just decide to go with clip-ons instead? https://i.imgur.com/RYz1ywa.png Originally Posted By thatARMSguy: Did the PVS-17 PIP upgrade concept ever go anywhere or did socom just decide to go with clip-ons instead? https://i.imgur.com/RYz1ywa.png Originally Posted By Villain_actual: I know they saw use during oif, exactly how much I couldn't say. Wikipedia says they're still in use currently but I don't know that I've ever seen one |
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Originally Posted By ChemTrailZ: I believe this is a ranger from early Georgia. I'm wondering if anyone can identify the rear sling attachment? Does not appear to be a cqd, and am curious if anyone knows or can identify it? https://www.ar15.com/media/mediaFiles/388771/IMG_0003_jpeg-3506827.JPG https://www.ar15.com/media/mediaFiles/388771/IMG_0003_jpeg-3506830.JPG Attached File |
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Originally Posted By LsuJon: A possibility is a crane made one similar to below. It would fit the time period, but that is just a guess. https://www.ar15.com/media/mediaFiles/316069/IMG_4605_jpeg-3506837.JPG well damn I think that's it; my photo looks tiny here but the zoomed in pic I have, I think you nailed it. Is this unobtanium? I don't even know what to search for on that... |
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Originally Posted By LsuJon: A possibility is a crane made one similar to below. It would fit the time period, but that is just a guess. https://www.ar15.com/media/mediaFiles/316069/IMG_4605_jpeg-3506837.JPG Pin is from an MP 5, IIRC? I cannot recall exactly what/where though. |
"All welchers should be removed from the EE".-Aimless
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Originally Posted By ChemTrailZ: well damn I think that's it; my photo looks tiny here but the zoomed in pic I have, I think you nailed it. Is this unobtanium? I don't even know what to search for on that... Originally Posted By ChemTrailZ: well damn I think that's it; my photo looks tiny here but the zoomed in pic I have, I think you nailed it. Is this unobtanium? I don't even know what to search for on that... Originally Posted By TGWLDR: Pin is from an MP 5, IIRC? I cannot recall exactly what/where though. I've never gone out my way to look for them but have been told you can find them. Buy you can always just make your own. They varied wildly and they don't exactly require a pro welder. They are just modified MP5 sling pins welded on to end plates. Attached File |
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Originally Posted By LsuJon: I've never gone out my way to look for them but have been told you can find them. Buy you can always just make your own. They varied wildly and they don't exactly require a pro welder. They are just modified MP5 sling pins welded on to end plates. https://www.ar15.com/media/mediaFiles/316069/IMG_4607_jpeg-3507069.JPG Thanks man. |
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Originally Posted By thatARMSguy: From the little documentation I've gathered, the #50M-CV was well liked as a standalone handguard but in terms of the actual contract requirements it and the URX II just weren't as good as the DD rail. Like the normal A.R.M.S. rails it used the standard milspec barrel nut and didn't require the handguard retainer cap to be removed, so armorers liked them for their ease of installation (at its simplest, you could just cut the delta ring off with a Dremel and install the rail with no further gunsmithing necessary), and it was the lightest option in the trials as it only weighs about 8.5-9 oz. The downside is that the actual installation process involves evenly torquing down six screws and with the wide tolerances of milspec barrel nuts it isn't uncommon to end up with the rail tilted up or down, so you need to use some sort of attachment clamped across both the rail and receiver to hold it steady while you install it or use the optional #50-CV03 Swan Sleeve to add some extra support. It's pretty solid once you do get it clamped on but the initial installation is annoying. The main drawback of the #50M-CV and URXII were the M203 mounting solutions, both A.R.M.S. and KAC entered standard carbine length rails into the trials which meant they had to use separate brackets that clamped onto the M203 and slotted into the rail to free-float it. It works well enough, but if you lose or damage one of the brackets you can no longer install the M203, and the DD system was both more rigid and simpler to install, which was one of the primary reasons it ended up winning. 
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Stick
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| Gorgeous build, wish they'd put the tan stuff into full production |
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Originally Posted By ChemTrailZ: I believe this is a ranger from early GWOT. I’m wondering if anyone can identify the rear sling attachment? Does not appear to be a cqd, and am curious if anyone knows or can identify it? *edit* don't know why the pic is so small, but appears to be single sided or center hold, not entirely sure The sling looks like it has a QD Snap hook and could be linked into an YHM-9756 end plate |
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Originally Posted By Midazoslam: Double tap. Did some body say DD RIS II prototype? https://i.imgur.com/m8QHxek.jpeg https://i.imgur.com/c9UwuQ7.jpeg If anyone knows a good machinist who can tolerate this level of tism, I'm trying to recreate the right thumbscrews for this rail. DD doesn't even have the specs. @haveblue83 |
Originally Posted By bradpierson26:
So I know you're a SF whore . . . . .
So I know you're a SF whore . . . . .
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Originally Posted By TheTacticalCoyote: @haveblue83 I know a guyyyyy. That looks fun. Someone get me some specs on thread size, depth of threads, and the distance of the milled circle where the nut sits and thats easy peasy. U wan sum knurls on the edges, bb? 
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Originally Posted By thatARMSguy: Trijicon sells those exact scopes with that laser engraving on the commercial market, usually when they have contract overruns but they're available every few months or so i have the battle worn acogs already i just need the stickers. its a brown and white sticker. i even have the durable semi gloss sticker paper to make them. i just need a scan of one if no one offers them yet. kind of amazed no one makes them. like maybe the uid label guys? if i only had a clear picture of one... |
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Originally Posted By LsuJon: A possibility is a crane made one similar to below. It would fit the time period, but that is just a guess. https://www.ar15.com/media/mediaFiles/316069/IMG_4605_jpeg-3506837.JPG i have 2 of those lock rings with welded mp5 rear sling loops. exactly like your picture. same paint and rust patina color. amazing. whats the story on those, what era? are they correct for any certain clones? |
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Originally Posted By Midazoslam: Pop quiz, who knows which rifle this is a clone of? https://i.imgur.com/Zt5vQrS.jpeg Forgetting the name at the moment, but was it a British SAS M4? In any case, looks sweet, nice job! |
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Originally Posted By AK47_COMMBLOC: i have the battle worn acogs already i just need the stickers. its a brown and white sticker. i even have the durable semi gloss sticker paper to make them. i just need a scan of one if no one offers them yet. kind of amazed no one makes them. like maybe the uid label guys? if i only had a clear picture of one... I know of someone with one so I'll try to hit them up for images. |
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Full post and autistic breakdown. A GB's M4A1 used during Operation Viking Hammer, Northern Iraq March 2003 https://arsof-history.org/articles/v1n1_op_viking_hammer_page_1.html         Colt AF upper, BCG, 14.5 BARREL (2000 DOM) KAC NT4 Gen 1, Vero Beach RIS, 300M Rear sight Ergo Xpress Vertical Grip and Ergo pistol grip Insight VLI, SG PEQ-2, 2x square button switches Aimpoint CompM M68 Redimag gen 1 YHM dual loop sling plate N1 stock, USGI silent sling |
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| How close to a Comp M2 in a Wilcox mount is an Aimpoint PRO in this mount? https://www.precisionreflex.com/scope-rings/46-30mm-aimpoint-non-adjustable-x-high-1675.html |
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Originally Posted By ELittlefield: How close to a Comp M2 in a Wilcox mount is an Aimpoint PRO in this mount? https://www.precisionreflex.com/scope-rings/46-30mm-aimpoint-non-adjustable-x-high-1675.html That's the go to stand in for the Wilcox. |
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Originally Posted By Engineer5: That's the go to stand in for the Wilcox. Originally Posted By Engineer5: Originally Posted By ELittlefield: How close to a Comp M2 in a Wilcox mount is an Aimpoint PRO in this mount? https://www.precisionreflex.com/scope-rings/46-30mm-aimpoint-non-adjustable-x-high-1675.html That's the go to stand in for the Wilcox. How about the PRO? It's quite visually similar other than the lack of a rubber thong connecting the caps. |
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Originally Posted By TGWLDR: Swap the caps/strap out with the older version. Originally Posted By TGWLDR: Originally Posted By ELittlefield: How about the PRO? It's quite visually similar other than the lack of a rubber thong connecting the caps. Swap the caps/strap out with the older version. Thank you. |
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Slowly but surely getting there. Hoping to track down a pre-2007 barrel if possible for this build to get as close to an authentic RIS II trials gun as I can (not holding out hope for an older Gasbuster though). Upper is surplus from the 75th RR, installed a spare ejection port cover (that was kinda bent out of shape so it isn't a perfect fit) and ordered a forward assist roll pin so I could put that on. Both the rail and rear sight were used in combat, an Air Force TACP unit bought a batch of these rails in the late 2000s and the rear sight is an actual BIS II test example used in the trials and later issued out on a service weapon, as it has the very early version of the rear apertures (the production ones had a much deeper notch on the top for CQB/long range use). These sights were actually made prior to the instruction manual interestingly, as the examples in that have the final production apertures. Had Daniel Defense submitted a carbine length handguard like A.R.M.S. and KAC, this is most likely what the Block II could have been.       |
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Originally Posted By Midazoslam: Did some body say DD RIS II prototype? If anyone knows a good machinist who can tolerate this level of tism, I'm trying to recreate the right thumbscrews for this rail. DD doesn't even have the specs. I was going to ask what the deal was with your missing thumbscrew.... Just get one of the thumbscrews that used to be used on the DD Light Mounts. Same thing, and the threaded portion can be cut down if its a bit too long. If the above doesn't make sense, I can take some pics to help you out. |
Stick
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Originally Posted By thatARMSguy: Slowly but surely getting there. Hoping to track down a pre-2007 barrel if possible for this build to get as close to an authentic RIS II trials gun as I can (not holding out hope for an older Gasbuster though). Upper is surplus from the 75th RR, installed a spare ejection port cover (that was kinda bent out of shape so it isn't a perfect fit) and ordered a forward assist roll pin so I could put that on. Both the rail and rear sight were used in combat, an Air Force TACP unit bought a batch of these rails in the late 2000s and the rear sight is an actual BIS II test example used in the trials and later issued out on a service weapon, as it has the very early version of the rear apertures (the production ones had a much deeper notch on the top for CQB/long range use). These sights were actually made prior to the instruction manual interestingly, as the examples in that have the final production apertures. Had Daniel Defense submitted a carbine length handguard like A.R.M.S. and KAC, this is most likely what the Block II could have been. https://i.imgur.com/fNDJ7cm.jpeg https://i.imgur.com/ROZiF0Q.jpeghttps://i.imgur.com/LtQ9YLx.jpeghttps://i.imgur.com/IcCpEkE.jpeg https://i.imgur.com/PmjcmPy.pnghttps://i.imgur.com/akRary4.pnghttps://i.imgur.com/00hg1M7.png Where did you get that surplus upper? |
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Originally Posted By ChicagoFoodie: Where did you get that surplus upper? |
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M4 SOPMOD Picture Thread (Block I, 1.5/PR, II) (Page 234 of 240)
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