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Posted: 2/20/2024 8:24:15 PM EDT
[#1]
Just thinking today when doing some maintenance on my Block II, and a question popped in my head. Hoping someone can answer this:
Why were two different RIS II’s pushed up the chain as far as the Block II M4 goes? Normal military procurement for items is generally strict and one thing is chosen. Also, Which came first (if either)? FSP, non? Which were more commonly seen? |
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Posted: 2/20/2024 9:53:24 PM EDT
[#2]
Glitch
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Posted: 2/20/2024 9:53:37 PM EDT
[#3]
Stupid glitch
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Posted: 2/20/2024 10:02:25 PM EDT
[Last Edit: tarheel7734]
[#4]
Fsp ris ii came first then non fsp came later. At least that was my experience in our group.
The fsp could be retrofitted on the block 1 and later when the rifles needed new barrels, the non fsb and low pro gas blocks were available. |
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Posted: 2/21/2024 2:05:05 AM EDT
[Last Edit: Combat_Diver]
[#5]
Quote HistoryOriginally Posted By Super_Trouper: Just thinking today when doing some maintenance on my Block II, and a question popped in my head. Hoping someone can answer this: Why were two different RIS II’s pushed up the chain as far as the Block II M4 goes? Normal military procurement for items is generally strict and one thing is chosen. Also, Which came first (if either)? FSP, non? Which were more commonly seen? Both were adopted at the same time. USASFC (United States Army Special Forces Command under USASOC/SOCOM) thought they could save some money by reusing the existing barrel on the gun hence the FSB model and they preferred the FSB for a front sight. Rest of SOCOM went with the non FSB M4 RIS II. Thats why guys in Groups received the FSBs first. |
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Posted: 2/21/2024 1:14:50 PM EDT
[#6]
Did the NSW DMR Block II’s use government or SOCOM profile barrels?
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Posted: 2/21/2024 1:40:05 PM EDT
[#7]
This was the first ever "in the wild" spotting of a RIS II rail in 2009, and it's a FSP... with an HK mag, sideways M4QD flash hider, and no rear sight. Why does nobody clone his look?
 
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Posted: 2/24/2024 8:25:00 PM EDT
[Last Edit: AWHAILYEAH]
[#8]
Block II Heavy Recce...............................I'll edit post tomorrow and get the real B2's out.......
 Real world Insperation for this setup as there are many variants but aside from Caliber and his has the MK6 vs my MK5 it's right there and it's heavy bitch but I like her. I gotta order two more Harris BRM-S BiPods and 2 Atlas so this one will have an Atlas just like below.....  
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TX, USA
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Posted: 2/27/2024 2:58:14 AM EDT
[#9]
Block II inspired, just got the front sight to wrap it up for now I think. Picked up a lot of parts from the EE, think it turned out pretty well.
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Posted: 2/27/2024 9:15:36 AM EDT
[Last Edit: Combat_Diver]
[#10]
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Posted: 2/27/2024 1:30:05 PM EDT
[#11]
Question for @Combat_Diver
Do you recall if the "14" and "1000XXXX" Crane serialized uppers were exclusively Colt? Or had you seen any FN, MSI, or Demco engraved that way? Thanks! 
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Posted: 2/27/2024 1:42:50 PM EDT
[Last Edit: Combat_Diver]
[#12]
Quote HistoryOriginally Posted By tanodized: Question for @Combat_Diver Do you recall if the "14" and "1000XXXX" Crane serialized uppers were exclusively Colt? Or had you seen any FN, MSI, or Demco engraved that way? Thanks! https://i.imgur.com/THRjA7G.jpeg Sorry, I do not. Didn't bother to look or take pictures on both sides. But all pre cage code USGI uppers. |
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Posted: 3/2/2024 5:47:39 PM EDT
[Last Edit: GAshooter11]
[#13]
 Attached File13.7 Noveske Far from a clone. Im yrs out of the game but i do enjoy this shorter profile. I presume it’s as short as you can go on a RISII if using a suppressor…. Maybe 13.5 but I don’t know who makes that. |
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USA
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Posted: 3/3/2024 8:35:28 PM EDT
[Last Edit: DirtyHarry_896]
[#14]
My Purple/Taupe themed Diemaco with some rain…..
Parts: Purplish Diemaco marked upper receiver Purplish Colt 6920 lower receiver Early DD RIS 2 FSP 14.5’ Colt 09/10 marked gov profile barrel LMT Gen 2 TAN Sopmod stock Surefire Close-tine FH P&W 2012 Trijicon ECOS with ARD Geissele DDC SCH Geissele Early SSA trigger Large Pin Surefire M951 TAN Daniel Defense Contract Overrun TAN VFG Surplus USGI BUIS B5 Grip TAN KAC Taupe Panels 
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Posted: 3/6/2024 9:17:36 AM EDT
[Last Edit: Combat_Diver]
[#15]
Tearing down this M4A1 MWS to put on DD RIS II M4A1 FSB
 Attached FileDisassemble, remove gas tube and then punch out taper pins  Attached FileDrop parts into solvent tank and remove carbon  Attached File |
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Posted: 3/6/2024 9:25:17 AM EDT
[#16]
Set out new parts
 Attached FileApply molybdenum disulfide to receiver threads and Torque barrel nut to 55 lbs x3. Use thickest barrel wrench  Attached File Attached File |
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Posted: 3/6/2024 9:34:06 AM EDT
[#17]
Pin gas tube to FSB and insert assembly into handguard and slide onto barrel and drive taper pins back into FSB/barrel
 Attached FileAdd something to agline upper/HG as you screw in 5/32” screws  Attached FileAttach bottom rail and side screws. Attach flash hinder, A2 today as individual not issued suppressor  Attached File |
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Posted: 3/6/2024 9:43:04 AM EDT
[#18]
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Posted: 3/6/2024 11:08:41 AM EDT
[#19]
Quote HistoryOriginally Posted By TGWLDR: Now that's cool.... https://www.ar15.com/media/mediaFiles/416992/IMG_7678_jpeg-3150829_jpeg-3150845.JPG I haven't even taken mine out of the plastic bag yet, and I got it last summer. I want mine laser engraved with my name. lol |
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TX, USA
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Posted: 3/6/2024 1:04:14 PM EDT
[#20]
Quote HistoryOriginally Posted By slowkota1: I haven't even taken mine out of the plastic bag yet, and I got it last summer. I want mine laser engraved with my name. lol That's one of the original prototype wrenches for testing. The newer ones have a different radius on the outer edge. Send Classified Defense an email. They'll mark whatever you want on a wrench. |
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USA
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Posted: 3/6/2024 3:07:47 PM EDT
[#21]
Quote HistoryOriginally Posted By Combat_Diver: Pin gas tube to FSB and insert assembly into handguard and slide onto barrel and drive taper pins back into FSB/barrel https://www.ar15.com/media/mediaFiles/32677/IMG_7681_jpeg-3150832.JPG Looks great! Did you reuse the same taper pins? |
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Posted: 3/6/2024 3:14:41 PM EDT
[#22]
Quote HistoryOriginally Posted By Jeff55: Looks great! Did you reuse the same taper pins? Depends if I have spares. |
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Posted: 3/7/2024 2:19:47 PM EDT
[Last Edit: Combat_Diver]
[#23]
Quote HistoryOriginally Posted By 4runnagunna: That's one of the original prototype wrenches for testing. The newer ones have a different radius on the outer edge. Send Classified Defense an email. They'll mark whatever you want on a wrench. @4runnagunna Can go back earlier in development. Used this one the most. Its at home now.  Attached File |
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Posted: 3/10/2024 2:48:33 PM EDT
[#24]
Hmmmmmmmmmmmmmmmmmmmmmmmm??
   So that I stay on thread topic...................... 
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OH, USA
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Posted: 3/15/2024 7:24:33 AM EDT
[Last Edit: medicmandan]
[#25]
[Deleted]
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OH, USA
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Posted: 3/15/2024 7:41:19 AM EDT
[Last Edit: medicmandan]
[#26]
[Deleted]
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Posted: 3/15/2024 8:16:30 PM EDT
[#27]
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Posted: 3/15/2024 8:37:38 PM EDT
[#28]
Quote HistoryOriginally Posted By LsuJon: https://www.ar15.com/media/mediaFiles/316069/IMG_5836_jpeg-3159965.JPG Not always a fan of the PRS-style stocks, but that just looks right at home on that setup. |
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Posted: 3/27/2024 2:35:09 PM EDT
[#29]
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Posted: 3/29/2024 10:44:16 AM EDT
[#30]
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Posted: 3/30/2024 9:57:32 AM EDT
[#31]
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Posted: 3/31/2024 12:38:59 AM EDT
[#32]
This is a shot in the dark, does anyone have pics or a resource on the RIS II trial rifles? I have seen the ones from SHOT Show 2006, some stickman took of the early DD RIS II, and then one was sold on gunbroker a while back.
Trying to figure out what the setup for the trials rifles would have been. I found something cool and would like to give it it's due. |
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TX, USA
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Posted: 3/31/2024 3:22:34 PM EDT
[#33]
Hopefully I’m doing this right lol. My first post on here but have been lurking since late 2016. I have had several clones (M4A1 block 2, CQBR & URGI) I always go back to the block 2 M4A1 and finally got a Colt Socom M4A1 Property marked rifle. I always try to build my clones as issued and add personal touches as I go. Really love the FSP build I got but Just wanted to say thanks to all for the good reads, awesome builds and thanks to @Combat_Diver for all the uploads and confirmations. I have 0 clue on how to post photos of my build but I will figure it out eventually
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TX, USA
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Posted: 4/1/2024 12:20:14 PM EDT
[Last Edit: Sbox197]
[#34]
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Posted: 4/1/2024 1:41:28 PM EDT
[#35]
Quote HistoryOriginally Posted By Sbox197: Link to my Post in military ar clones thread on Reddit. Perfection! Sorry to see you're a lefty, my condolences lol I really need to try an Elcan one of these days. Wish someone local had one.  
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TX, USA
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Posted: 4/1/2024 3:51:50 PM EDT
[#36]
Yeah it can be a pain sometimes but it’s all good! Nice build! I had a Tango 6T and found that I’m not all that efficient with LPVO’s. I shoot my clones only primarily as they double as my SHTF rifle (lol). I found that the Elcan has great eye relief and is easy and quick to use for CQB. Also, thanks for the reply!
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Posted: 4/1/2024 4:03:49 PM EDT
[#37]
Quote HistoryOriginally Posted By Sbox197: Link to my Post in military ar clones thread on Reddit. I've found the easiest way to upload w/o a membership is posting a link from IMGUR imo. I do think it's time to move away from the NSW DMR and onto something more  Attached File |
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Posted: 4/1/2024 5:29:00 PM EDT
[#38]
Quote HistoryOriginally Posted By LsuJon: Nice build! Enjoyed seeing it over there. I've found the easiest way to upload w/o a membership is posting a link from IMGUR imo. I do think it's time to move away from the NSW DMR and onto something more https://www.ar15.com/media/mediaFiles/316069/IMG_6033_jpeg-3175727.JPG I was all about going the NSW route... But I just ordered a 15.1" Lilja Recce barrel, so going to build an NSW RIS II upper. So with this one, ditch the lpvo and go Elcan or ACOG, with a heavy lean towards the Elcan. |
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Posted: 4/2/2024 9:33:17 PM EDT
[#39]
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Posted: 4/2/2024 9:34:36 PM EDT
[#40]
Quote HistoryOriginally Posted By Rothperson87: I don’t know what to do with this thing…razor 1-6 or mk5 3.6-18? https://www.ar15.com/media/mediaFiles/462226/IMG_2090_jpeg-3176823.JPG Yes, but with a little more emphasis on the Mk5. |
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Posted: 4/2/2024 9:35:50 PM EDT
[#41]
Quote HistoryOriginally Posted By Rothperson87: I don’t know what to do with this thing…razor 1-6 or mk5 3.6-18? https://www.ar15.com/media/mediaFiles/462226/IMG_2090_jpeg-3176823.JPG Razor gen 3 or atacr.  Attached File |
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Posted: 4/2/2024 10:48:35 PM EDT
[#42]
Quote HistoryOriginally Posted By Rothperson87: I don’t know what to do with this thing…razor 1-6 or mk5 3.6-18? https://www.ar15.com/media/mediaFiles/462226/IMG_2090_jpeg-3176823.JPG Razor would be titties on there. |
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Posted: 4/2/2024 10:57:58 PM EDT
[#43]
Got mostly together. Surefire is in the mail. There’s a few things I still need.
I have to decide on a more correct scope mount. I’m probably going to go with a KAC rear sight.  Attached File |
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Posted: 4/3/2024 3:05:03 PM EDT
[#44]
Quote HistoryOriginally Posted By -Ascent-: Got mostly together. Surefire is in the mail. There’s a few things I still need. I have to decide on a more correct scope mount. I’m probably going to go with a KAC rear sight. https://www.ar15.com/media/mediaFiles/163367/IMG_0288_jpeg-3176867.JPG There can only be one!  JK... If I did it over again, I'd go Badger C1 in 1.7" height... I don't think I've seen pics of a PST 1-6 with the C1 ITW but I'm not an autist lmao |
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Posted: 4/3/2024 3:07:21 PM EDT
[Last Edit: -Ascent-]
[#45]
Quote HistoryOriginally Posted By slowkota1: There can only be one! https://i.imgur.com/5itjevt.jpeg JK... If I did it over again, I'd go Badger C1 in 1.7" height... I don't think I've seen pics of a PST 1-6 with the C1 ITW but I'm not an autist lmao Quote HistoryOriginally Posted By slowkota1: Originally Posted By -Ascent-: Got mostly together. Surefire is in the mail. There’s a few things I still need. I have to decide on a more correct scope mount. I’m probably going to go with a KAC rear sight. https://www.ar15.com/media/mediaFiles/163367/IMG_0288_jpeg-3176867.JPG There can only be one! https://i.imgur.com/5itjevt.jpeg JK... If I did it over again, I'd go Badger C1 in 1.7" height... I don't think I've seen pics of a PST 1-6 with the C1 ITW but I'm not an autist lmao That’s the one I’ve been looking at. Looks damn good! Do you know if there’s a red dot mount for the upper part of the front mount? Edit: Damn the badger c1 looks nice. |
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Posted: 4/3/2024 3:12:20 PM EDT
[Last Edit: tarheel7734]
[#46]
Quote HistoryOriginally Posted By slowkota1: There can only be one! https://i.imgur.com/5itjevt.jpeg JK... If I did it over again, I'd go Badger C1 in 1.7" height... I don't think I've seen pics of a PST 1-6 with the C1 ITW but I'm not an autist lmao The badger 1.7 or a reptilla 1.7 is the way to go. I l9ve the 1.7 badgers I have.. Btw if anyone needs a 1.53 badger in tan, I have a spare laying around. Mounted the razor gen 3 then swapped out for a 1.7. Never made it out to the range.  Attached File |
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Posted: 4/3/2024 3:13:31 PM EDT
[#47]
Quote HistoryOriginally Posted By Rothperson87: I don’t know what to do with this thing…razor 1-6 or mk5 3.6-18? https://www.ar15.com/media/mediaFiles/462226/IMG_2090_jpeg-3176823.JPG Mk6... Or I guess mk5 heh |
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Posted: 4/3/2024 3:25:29 PM EDT
[#48]
Quote HistoryOriginally Posted By -Ascent-: That’s the one I’ve been looking at. Looks damn good! Do you know if there’s a red dot mount for the upper part of the front mount? Edit: Damn the badger c1 looks nice. I have the Reptilia corp RMR ring cap mount on mine. 
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Posted: 4/3/2024 3:39:01 PM EDT
[#49]
Quote HistoryOriginally Posted By slowkota1: I have the Reptilia corp RMR ring cap mount on mine. https://i.imgur.com/7cvRIk7.jpg Quote HistoryOriginally Posted By slowkota1: Originally Posted By -Ascent-: That’s the one I’ve been looking at. Looks damn good! Do you know if there’s a red dot mount for the upper part of the front mount? Edit: Damn the badger c1 looks nice. I have the Reptilia corp RMR ring cap mount on mine. https://i.imgur.com/7cvRIk7.jpg That is perfect. Looks really good. |
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Posted: 4/4/2024 1:59:02 PM EDT
[#50]
It starts. 14.5 Colt SOCOM barrel will be here Saturday.
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