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Posted: 4/21/2020 9:19:09 PM EDT
[#1]
I haven't toyed with the idea of shortening the BCG. I have heard their hell on tooling to machine
 You would have to shorten the forward part of the bcg to keep the FCG functional. maybe from the firing pin area? then shorten the pin. and then there's the gas key...Maybe your seeing a different picture than me. on the upper maybe you could cut out a section behind the shell deflector then step it (ie make an arbor to hold it on center with the bolt raceway, turn one half with a larger ID for A few 100 thou then the opposite cut the OD to slip fit the ID of the other half. then run a dowel pin or two trough the pic rails and freeze one half, heat the other and press them together with some sort of bonding agent. this would be easier with a slick side upper but should be doable between the shell deflector and forward assist if your after the mars look. Maybe 3d print a lower?  Or maybe modify a lower like this https://www.gunsamerica.com/digest/versatile-ar-ever-multi-cal-windham-rmcs-4-full-review/ then 3d print your magwell/front pin area. |
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Posted: 4/21/2020 10:19:27 PM EDT
[#2]
Quote HistoryQuoted: Yes, 1.830". Scaling down the whole gun. I wouldn't have gone to the trouble of making mags if I just wanted an AR in .221. I'm debating shortening the BCG instead of relocating the FCG. I do have a 0% lower I may use. You not only have to chop the BCG to fit the shortened receiver, but shorten the firing pin & then cut enough out of the firing pin channel for the shortened firing pin. Might take a close look @ the POF. They had to shift some of the FCG rearwards b/c they shoved a .308 mag into a an AR-15 length receiver, and they've got the base of the firing pin hanging out in thin air. Fascinating project, Josh. |
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Posted: 4/21/2020 10:21:36 PM EDT
[#3]
This thread has kinda gotten a little sidetracked.
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Posted: 4/21/2020 11:32:16 PM EDT
[#4]
Quote HistoryQuoted: You not only have to chop the BCG to fit the shortened receiver, but shorten the firing pin & then cut enough out of the firing pin channel for the shortened firing pin. Might take a close look @ the POF. They had to shift some of the FCG rearwards b/c they shoved a .308 mag into a an AR-15 length receiver, and they've got the base of the firing pin hanging out in thin air. Fascinating project, Josh. Well I'll be! Noticed they dovetailed the gas key into the bcg and cut off 1 bolt. I'm liking where this is going! if they can stuff a 2.8" cartridge into a 2.3" mag well then should be no problem lobbing off 1/2" from the current platform. now you got me thinking. |
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Posted: 4/28/2020 4:50:17 PM EDT
[#5]
Just recently built a micro AR myself, had a blast building it, and shooting it quite literally a blast:
  KAK 4.75" 5.56 barrel, Maxim CQB brace (Soon to swap to a SCW brace I think) and battle comp on for the pic, but swapped with a muzzle brake that has suppressor rear mount for blast shield / suppressor. Fits nicely in a covert bag too.  |
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Posted: 4/28/2020 4:57:19 PM EDT
[#6]
Quote HistoryQuoted: Just recently built a micro AR myself, had a blast building it, and shooting it quite literally a blast: https://i.imgur.com/3ZWtZYA.jpg https://i.imgur.com/RTrUXEs.jpg KAK 4.75" 5.56 barrel, Maxim CQB brace (Soon to swap to a SCW brace I think) and battle comp on for the pic, but swapped with a muzzle brake that has suppressor rear mount for blast shield / suppressor. Fits nicely in a covert bag too. https://i.imgur.com/GbGBj70.jpg IT'S SO LIL'! I love it. |
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Posted: 4/28/2020 8:04:58 PM EDT
[#7]
Quote HistoryQuoted: Just recently built a micro AR myself, had a blast building it, and shooting it quite literally a blast: https://i.imgur.com/3ZWtZYA.jpg KAK 4.75" 5.56 barrel, Maxim CQB brace (Soon to swap to a SCW brace I think) and battle comp on for the pic, but swapped with a muzzle brake that has suppressor rear mount for blast shield / suppressor. Fits nicely in a covert bag too. https://i.imgur.com/GbGBj70.jpg Love it, Onyx. I own a Maxim PDX and am just finishing up a micro carry handle A2 with 6.5" 300bkt barrel. What brand handstop and carry bag are those? |
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Posted: 4/28/2020 9:10:32 PM EDT
[#8]
The handstop is just a generic I found, though I suspect it's made to look like the one SLR uses.
The covert bag is another project I did, when I didn't want to drop big bucks on a sneaky bag. Picked up a cheap school bag from overseas (complete with garbage/nonsensical english words on the front), made a pattern from cardboard for inside, cut some think MDF to fit, glued down 4" wide velcro loop, and then sewed up some velcro mounts. Figured that all in I was about $35-45 on the project.     
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Posted: 4/28/2020 10:05:05 PM EDT
[#9]
Quote HistoryQuoted: #troof Quote HistoryQuoted: Quoted:  it's funny to see people meet RDTCU for the first time in these forums. The excitement in their voice, followed by the deflating realization that he crafts these projects himself and they are literally one-of-a-kind and will never be obtainable. #troof  |
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Posted: 5/1/2020 9:59:27 PM EDT
[#10]
Still a work in progress.
 Still sporting my test barrel. Made another that I need to put on. Also have a Reptillia CQG grip to put on and i'm going to shorten the stock/Buffer tube to UCIW length. ETA: Rit dyed my reptillia grip finally and slapped it on. Loving it! 
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Posted: 5/2/2020 3:34:17 AM EDT
[#11]
Quote HistoryOriginally Posted By garred8787: Still a work in progress. https://i.imgur.com/CMRur9xl.jpg Still sporting my test barrel. Made another that I need to put on. Also have a Reptillia CQG grip to put on and i'm going to shorten the stock/Buffer tube to UCIW length. Beautiful SBR you have there. |
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Posted: 5/2/2020 12:23:27 PM EDT
[#12]
Quote HistoryOriginally Posted By OnyxSkyDV: The handstop is just a generic I found, though I suspect it's made to look like the one SLR uses. The covert bag is another project I did, when I didn't want to drop big bucks on a sneaky bag. Picked up a cheap school bag from overseas (complete with garbage/nonsensical english words on the front), made a pattern from cardboard for inside, cut some think MDF to fit, glued down 4" wide velcro loop, and then sewed up some velcro mounts. Figured that all in I was about $35-45 on the project. https://i.imgur.com/BjZM6SI.jpg https://i.imgur.com/Hr64ikX.jpg https://i.imgur.com/oGiDzGO.jpg https://i.imgur.com/FqzlonU.jpg https://i.imgur.com/ywIvcW4.jpg Outstanding work on that bag. Good for you to go the DIY route. |
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Posted: 5/2/2020 6:52:59 PM EDT
[#13]
Just posted these pics of my A2 PDW carry handle build, in the AR Pistol Picture thread.
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Posted: 5/5/2020 11:40:22 PM EDT
[#14]
8.5"
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Posted: 5/6/2020 1:13:19 AM EDT
[#15]
Quote HistoryOriginally Posted By MRW: 8.5" https://www.AR15.Com/media/mediaFiles/5205/7B6AB815-310A-4D67-A44C-4BFA72771506-1401692.jpg Let's have a conversation about that handstop. Product or custom job? |
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Posted: 5/6/2020 7:09:34 AM EDT
[#16]
It's a Pearce pinky extension for a Glock mag, trimmed to fit and held on with a 10-32 screw and threaded onto the cut down ALG handguard.
I've been thinking I want you to paint it. j/k! |
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Posted: 5/6/2020 7:45:03 AM EDT
[#17]
Quote HistoryOriginally Posted By MRW: It's a Pearce pinky extension for a Glock mag, trimmed to fit and held on with a 10-32 screw and threaded onto the cut down ALG handguard. I've been thinking I want you to paint it. j/k! Roger 
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Posted: 5/8/2020 4:43:18 PM EDT
[#18]
another 8.5" built off of a PSA barrel
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Posted: 5/9/2020 9:41:16 PM EDT
[#19]
Quote HistoryOriginally Posted By RDTCU: https://www.AR15.Com/media/mediaFiles/173511/IMG_20160922_202834438_jpg-1312819.JPG Quote HistoryOriginally Posted By RDTCU: Originally Posted By cccpNyC: I remember that day  I still cry into my pillow a little every once in a while.  https://www.AR15.Com/media/mediaFiles/173511/IMG_20160922_202834438_jpg-1312819.JPG Every time you post pictures of that gun I hate you more.
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Posted: 5/12/2020 10:07:00 AM EDT
[#20]
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Posted: 5/22/2020 8:50:08 PM EDT
[#21]
Clean.
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Posted: 6/2/2020 9:27:35 PM EDT
[#22]
Quote HistoryDamn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. |
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Posted: 6/2/2020 10:21:19 PM EDT
[#23]
Quote HistoryQuoted: Damn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. Look closer....It has a ambi charging handle at the front of the handguard. ala Mp5 style...well similar but better. |
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Posted: 6/3/2020 7:25:45 AM EDT
[#24]
Quote HistoryQuoted: Damn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. Another view   Attached File Attached File |
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Posted: 6/3/2020 7:26:53 AM EDT
[#25]
Quote HistoryQuoted: Look closer....It has a ambi charging handle at the front of the handguard. ala Mp5 style...well similar but better. No MP5 slap
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Posted: 6/3/2020 11:31:27 AM EDT
[#26]
@bigmoney327
Nicely done! Clean.... Quote History |
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Posted: 6/3/2020 5:00:33 PM EDT
[#27]
Thanks. With an H3 and the can on, there is virtually no movement of the dot when firing.
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Posted: 6/3/2020 7:07:26 PM EDT
[#28]
Quote HistoryQuote HistoryQuoted: Quoted: Damn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. Another view https://www.AR15.Com/media/mediaFiles/173511/IMG_20160922_202657819_jpg-1444865.JPG https://www.AR15.Com/media/mediaFiles/173511/IMG_20150122_214632_562_jpg-1444866.JPG Stop 
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Posted: 6/3/2020 7:37:02 PM EDT
[#29]
Quote HistoryQuoted: Stop Quote HistoryQuoted: Quoted: Quoted: Damn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. Another view https://www.AR15.Com/media/mediaFiles/173511/IMG_20160922_202657819_jpg-1444865.JPG https://www.AR15.Com/media/mediaFiles/173511/IMG_20150122_214632_562_jpg-1444866.JPG Stop If one man can build it, so can another man. It's not rocket surgery. |
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Posted: 6/3/2020 8:03:11 PM EDT
[#30]
Quote HistoryQuoted: If one man can build it, so can another man. It's not rocket surgery. True but not all men posses the skill or equipment to make such miracle's happen. Can't wait to start making chips with my mill!
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Posted: 6/3/2020 8:09:51 PM EDT
[#31]
Quote HistoryQuoted: If one man can build it, so can another man. It's not rocket surgery. Quote HistoryQuoted: Quoted: Quoted: Quoted: Damn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. Another view https://www.AR15.Com/media/mediaFiles/173511/IMG_20160922_202657819_jpg-1444865.JPG https://www.AR15.Com/media/mediaFiles/173511/IMG_20150122_214632_562_jpg-1444866.JPG Stop If one man can build it, so can another man. It's not rocket surgery. If only I had a machine shop ...I'd have a pile of metal shavings and a bunch of junk metal that doesn't look like anything
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Posted: 6/3/2020 8:54:06 PM EDT
[#32]
What if we could build a machine shop by 3-D printing parts and using Legos?
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Posted: 6/3/2020 8:57:05 PM EDT
[#33]
Quote HistoryQuoted: What if we could build a machine shop by 3-D printing parts and using Legos? In
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Posted: 6/4/2020 2:06:29 AM EDT
[#34]
Quote HistoryQuoted: No MP5 slap Quote HistoryQuoted: Quoted: Look closer....It has a ambi charging handle at the front of the handguard. ala Mp5 style...well similar but better. No MP5 slap Wouldn't bother me any. That thing is tits! 
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Posted: 6/4/2020 7:13:31 AM EDT
[#35]
Quote HistoryQuoted: What if we could build a machine shop by 3-D printing parts and using Legos?  Attached File |
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Posted: 6/4/2020 11:08:34 PM EDT
[#36]
Oh, I was just being silly, but I've had good success w/ threaded steel rod inside Lego Technic pieces. I used superglue, but we could just put nuts on em and start bolting structures together. For some stuff you're gonna need steel, and you'll need a lot of weight to hold the thing steady.
Given the speed of home 3-D printers and the cost of Legos, it would take one years to build up a large mill... |
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Posted: 6/4/2020 11:19:34 PM EDT
[#37]
Quote HistoryQuoted: https://www.AR15.Com/media/mediaFiles/284414/20200511_194407_jpg-1412404.JPG Placeholder while I wait on parts backlog Of all the parts a damn pistol grip is holding this up. Ordered whatever came in first to get this complete already |
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Posted: 6/7/2020 12:57:48 PM EDT
[#38]
   
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Posted: 6/7/2020 9:49:00 PM EDT
[#39]
That's a really nice pistol you have there, Smoke. Can you post the component list?
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Posted: 6/8/2020 6:17:23 PM EDT
[#40]
Quote HistoryQuoted: That's a really nice pistol you have there, Smoke. Can you post the component list? Thank you Parts list -KAK Micro Upper (5.56 4.75" 1/5 SS) -KAK Micro slimline Flashcan -KAK Shockwave Tube Kit w/H2 Heavy buffer upgrade -Damage Industries Enhanced Buffer Spring -Strike Industries Stabilizer Brace -Law Tactical Folder -Anderson Ghost Lower Receiver (No Logo) -WMD NiB-X Trigger/Hammer Set -JP Springs -KNS pins -Toolcraft NiB BCG -Gunfighter w/Medium Latch -SLR Handstop -BCM QD mount -Midwest Industries BUIS -Streamlight Pro-Tac Weaponlight w/Arisaka Scout Mount -Sig Romeo MSR -Spikes Ambi-Safety -KAC Trigger Guard -Umbrella Corp. Grip -Umbrella Corp. LPK -Geissele Maritime Bolt Catch (New addition today) |
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Posted: 7/1/2020 1:04:19 PM EDT
[#41]
Quote HistoryQuoted: https://www.AR15.Com/media/mediaFiles/284414/20200511_194407_jpg-1412404.JPG Placeholder while I wait on parts backlog  Attached File |
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Posted: 7/14/2020 6:35:53 PM EDT
[#42]
My PDW SBR.
 Attached File Attached FileAnd my son's H&K homage AR PDW  Attached FileAnd his bufferless AR using a RRA upper  Attached File |
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Posted: 7/16/2020 11:26:53 PM EDT
[#43]
Quote HistoryQuote HistoryQuoted: Quoted: Damn thats hot. Only thing that would make it better is if it was a side charger. Fing nice build. Another view https://www.AR15.Com/media/mediaFiles/173511/IMG_20160922_202657819_jpg-1444865.JPG https://www.AR15.Com/media/mediaFiles/173511/IMG_20150122_214632_562_jpg-1444866.JPG @RDTCU OMG! AMAZING! I need details! What parts did you use??? Tell us! Tell us now! |
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Posted: 7/17/2020 7:04:43 AM EDT
[#44]
Quote HistoryQuoted: @RDTCU OMG! AMAZING! I need details! What parts did you use??? Tell us! Tell us now! 80% lower chopped in half Modified Anderson stripped upper Billet magwell bolted on Chopped standard DI carrier with opened bolt Oval aluminum tubing for the handguard Assorted bits of stainless, nylon and ejector sleeves Modified ARMS swan sleeve AR180 action springs Billet buffer tower cup / stock adapter Nordic CCS stock from first run Chaos USA Saiga12 sights (had to weld up front post) |
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Posted: 7/17/2020 12:33:05 PM EDT
[#45]
Quote HistoryQuoted: 80% lower chopped in half Modified Anderson stripped upper Billet magwell bolted on Chopped standard DI carrier with opened bolt Oval aluminum tubing for the handguard Assorted bits of stainless, nylon and ejector sleeves Modified ARMS swan sleeve AR180 action springs Billet buffer tower cup / stock adapter Nordic CCS stock from first run Chaos USA Saiga12 sights (had to weld up front post) Quote HistoryQuoted: Quoted: @RDTCU OMG! AMAZING! I need details! What parts did you use??? Tell us! Tell us now! 80% lower chopped in half Modified Anderson stripped upper Billet magwell bolted on Chopped standard DI carrier with opened bolt Oval aluminum tubing for the handguard Assorted bits of stainless, nylon and ejector sleeves Modified ARMS swan sleeve AR180 action springs Billet buffer tower cup / stock adapter Nordic CCS stock from first run Chaos USA Saiga12 sights (had to weld up front post) Chop build. That's why it looks so unique. Nice! 
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Posted: 7/17/2020 1:01:50 PM EDT
[#46]
Quote HistoryQuoted: Chop build. That's why it looks so unique. Nice! Shot it in 2gun last Saturday, didn't do quite as well as i normally do with my 300blk. Got 7th/45, usually in the top 3. A lot of that was probably the optic though, fastfire 2 vs Eotech, finding half-size targets in the shadows while facing the sun. |
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Posted: 8/19/2020 5:01:39 PM EDT
[#47]
Whats the caliber you have on that 7.5"?
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Posted: 8/25/2020 2:13:18 PM EDT
[#48]
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Posted: 8/25/2020 3:09:58 PM EDT
[#49]
As long as the parts don't fall off the boat this is awaiting assembly.
EDIT: I will probably add a Geissele ACH to this build and change the lower receiver to a JL billet. 
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Posted: 8/25/2020 5:26:57 PM EDT
[#50]
$4550? Holy shit, dude.
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