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Posted: 6/7/2021 8:08:14 PM EDT
[#1]
That is super cool. Well-done, and I hope it's a great shooter.
Is the carry handle easily-removable? |
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Posted: 6/7/2021 9:02:46 PM EDT
[#2]
Quote HistoryQuoted: That is super cool. Well-done, and I hope it's a great shooter. Is the carry handle easily-removable? |
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Posted: 6/8/2021 1:08:31 AM EDT
[#3]
That is quite nice. You did good work.
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Posted: 6/12/2021 5:09:29 AM EDT
[#4]
@katzma You're doing an outstanding job. Wishing you total success.
Here's a few pics of AR70s that I've run across over the decades. Italy 90' working with the Italian SF/9° Reggimento d'Assalto Paracadutisti "Col Moschin" from 1/10th Bad Tolz, Germany  Attached FileRecovered this one in Baghdad 08'  Attached FileCD |
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Posted: 6/12/2021 10:19:32 PM EDT
[#5]
@katzma where did you get the take down tool?
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Posted: 6/13/2021 9:02:47 AM EDT
[#6]
Quote HistoryQuoted: @katzma where did you get the take down tool? |
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Posted: 6/16/2021 9:22:20 PM EDT
[#7]
What amazing work and skills! Great job and a beautiful weapon!
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Posted: 6/18/2021 10:49:53 PM EDT
[#8]
Finally found some time to blast and blue the selectors and do some color fill. Not the best but I'm happy with it. Used testors enamel model paint.
 
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Posted: 7/22/2021 7:13:03 PM EDT
[#9]
Found another hard to find piece for my AR70/90. Trijicon TA14 ACOG mount. Trijicon discontinued them years ago and said they won't make any more. Been looking for one for a little over a year and found it recently on gunbroker. Not the most secure mount and the ACOG sits a little too far forward.
    
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Posted: 7/23/2021 10:41:57 AM EDT
[#10]
I love finding discontinued parts that "I need" , Lol
Congrats on finding one you needed. Still very impressed with this build. Thanks again for sharing. |
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Posted: 7/23/2021 10:49:14 AM EDT
[#11]
Quote HistoryQuoted: Any word on barrels? And gunsmiths that are going to complete the kits for those of us that dont have the shop/skills? Mark Serbu just had a small run of really nice barrels (got one of those). Troy ess is the go to guy for barrels now. Same guy that made the 80% so Im sure they barrels will be awesome as well. |
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Posted: 7/28/2021 5:16:48 PM EDT
[#12]
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Posted: 7/28/2021 8:07:07 PM EDT
[#13]
Quote HistoryQuoted: Mark Serbu just had a small run of really nice barrels (got one of those). Troy ess is the go to guy for barrels now. Same guy that made the 80% so Im sure they barrels will be awesome as well. Quote HistoryQuoted: Quoted: Any word on barrels? And gunsmiths that are going to complete the kits for those of us that dont have the shop/skills? Mark Serbu just had a small run of really nice barrels (got one of those). Troy ess is the go to guy for barrels now. Same guy that made the 80% so Im sure they barrels will be awesome as well. Now to find someone to do the build for me. I am not equipped or experienced to do it. As an aside, my dang in the white receiver got rusted a bit.  My fault, OK humidity and I didn't oil it.
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Posted: 7/29/2021 6:12:41 PM EDT
[#14]
Hey guys, how does one contact Troy for a receiver shell? Also looking for a smith if anyone knows someone who'd work on a crazy thing like this, I'm sadly not up to it.
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Posted: 7/30/2021 3:34:28 AM EDT
[#15]
Quote HistoryQuoted: Ordered from Troy ess. Now to find someone to do the build for me. I am not equipped or experienced to do it. As an aside, my dang in the white receiver got rusted a bit. My fault, OK humidity and I didn't oil it.If you find somebody in Oklahoma let me know. I still have my parts kit. |
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Posted: 8/6/2021 1:43:04 PM EDT
[#16]
Settled on a scope for the AR70/90. Hensoldt Fero Z24. Mounted in a ARMS #19A STANAG mount. On top of the B&T rail. Eye relief is better than the ACOG though I wish the stock was 1-2" shorter. I'll probably end up making a shorter stock. What do you think?
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Posted: 8/7/2021 3:11:20 PM EDT
[#17]
Quote HistoryQuoted: Settled on a scope for the AR70/90. Hensoldt Fero Z24. Mounted in a ARMS #19A STANAG mount. On top of the B&T rail. Eye relief is better than the ACOG though I wish the stock was 1-2" shorter. I'll probably end up making a shorter stock. What do you think? https://i.imgur.com/uyrB5oh.jpg https://i.imgur.com/o94lheA.jpg https://i.imgur.com/AfZLezT.jpg https://i.imgur.com/FljJoET.jpg That's super cool, man I need to find a mount somehow lol. |
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Posted: 8/7/2021 8:52:11 PM EDT
[#18]
Quote HistoryQuoted: Hey guys, how does one contact Troy for a receiver shell? Also looking for a smith if anyone knows someone who'd work on a crazy thing like this, I'm sadly not up to it. Troy is no longer making receivers due to concerns over ATF rulings. That may change, but it is what it is now. |
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Posted: 8/7/2021 9:09:08 PM EDT
[#19]
Quote HistoryQuoted: Settled on a scope for the AR70/90. Hensoldt Fero Z24. Mounted in a ARMS #19A STANAG mount. On top of the B&T rail. Eye relief is better than the ACOG though I wish the stock was 1-2" shorter. I'll probably end up making a shorter stock. What do you think? https://i.imgur.com/uyrB5oh.jpg https://i.imgur.com/o94lheA.jpg https://i.imgur.com/AfZLezT.jpg https://i.imgur.com/FljJoET.jpg Why the riser? |
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Posted: 8/7/2021 11:08:08 PM EDT
[#20]
This guy sells flats. I have one and it will take a lot of work to make a receiver, but it is an option that is out there. Some people were working on dies for pressing flats. I am waiting on my house to close so I can get an address to ship my barrel. Then I can start the build.AR70/90 Flats
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Posted: 8/7/2021 11:49:02 PM EDT
[#21]
Quote HistoryQuoted: Why the riser? |
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Posted: 8/8/2021 6:14:53 PM EDT
[#22]
Quote HistoryQuoted: Riser as in the ARMS #19A? Or the B&T? The B&T is the picatinny mount that fits the AR70/90. The ARMS #19A is designed to mount STANAG scopes, so the scope is bolted directly to the mount which is mounted to the B&T rail. I cannot find a direct STANAG to AR70/90 rail. Ah. The optic is mounted to the STANAG mount of the ARMS 19A, which also has Picatinny rails that are unused. From the pics, it appears the optic is mounted to the Picatinny rails of the ARMS 19A. |
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Posted: 8/8/2021 11:25:26 PM EDT
[#23]
Quote HistoryQuoted: Had to move the rear sight back roughly 1/16" because the B&T picatinny rail wouldn't fit. Then cleaned up the welds, sand blasted and cold blued. https://i.imgur.com/VP4IXKY.jpg https://i.imgur.com/iVkhqqJ.jpg https://i.imgur.com/9X1Fub8.jpg Oiled after bluing. https://i.imgur.com/Dd2Nu3x.jpg https://i.imgur.com/9FwNe8D.jpg https://i.imgur.com/fT7W6tE.jpg Complete upper receiver. Rear sight, dust cover slide and take down pin retaining clip installed. https://i.imgur.com/0bkABJR.jpg Next I'll finish neutering the FCG and refinish the lower. Interesting what happened here that required moving the rear sight back. Were Troy's blueprints off? |
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Posted: 8/9/2021 1:43:33 PM EDT
[#24]
Quote HistoryQuoted: Interesting what happened here that required moving the rear sight back. Were Troy's blueprints off? |
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Posted: 8/11/2021 12:05:13 PM EDT
[#25]
Looks like Troy has changed his mind on discontinuing receivers in light of the ATF rulings under comment. He has some receivers up on gunbroker, unless they are old stock. He also has barrels on gunbroker, but odds are you can get a better price contacting him directly.
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Posted: 9/2/2021 10:13:42 PM EDT
[#26]
Figured since me and the kids are stuck at home with the rona, I'd make my AR stock adapter. Took about 30 mins to make. Just used some 1/8 strap, cut out the shape, plug welded the tabs and cold blued it. Welded on a castle nut so the AR buffer tube will screw on then tighten with a 2nd castle nut. Works good and doesn't look too terrible. Using a Shockwave 2.0 brace for now. Waiting on my 12" barrel to arrive. It will eventually get SBRd. What do you think.
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Posted: 9/3/2021 12:38:43 AM EDT
[#27]
Nice! You're not going to be accused of shouldering that brace w/ that height over bore.
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Posted: 9/3/2021 7:15:02 AM EDT
[#28]
Very clever! So tell us your plan to install the 12" barrel!
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Posted: 9/3/2021 11:46:48 AM EDT
[#29]
Quote HistoryQuoted: Very clever! So tell us your plan to install the 12" barrel! |
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Posted: 9/11/2021 8:21:35 PM EDT
[#30]
After a shipping snafu finally got my 12" barrel. I had it made with the last 1.5" threaded 1/2x28, the gas port is just located and not drilled so I can work up the gas port size. I'll use the C for the normal setting and the O as the suppressed setting.
   I cut the gas tube down to 8.125"   And cut and welded the piston to 9.56" (this is a test piston. I'll do a better one monday). I also cut the spring down to 55 coils. For the gas block retainer I used a knurled barrel nut and notched it for the latch. I also used a jamb nut to tighten against the muzzle brake.     12" Beretta AR70/90. |
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Posted: 11/26/2021 11:37:08 PM EDT
[#31]
Great job. I just picked up a preban AR70. Do you happen to know if the AR70/90 bipod will fit on an AR70 barrel? They look identical, but you never know.
Thanks |
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Posted: 11/27/2021 12:17:55 AM EDT
[#32]
How have I missed this amazing thread?!?!
Fantastic work and the gun looks great. Very impressive |
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Posted: 11/27/2021 9:42:57 AM EDT
[#33]
Great work - You are most helpful and inspiring for these rare builds!
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Posted: 11/27/2021 11:46:38 AM EDT
[#34]
Quote HistoryQuoted: Great job. I just picked up a preban AR70. Do you happen to know if the AR70/90 bipod will fit on an AR70 barrel? They look identical, but you never know. Thanks |
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Posted: 11/27/2021 5:55:35 PM EDT
[#35]
Quote HistoryQuoted: After a shipping snafu finally got my 12" barrel. I had it made with the last 1.5" threaded 1/2x28, the gas port is just located and not drilled so I can work up the gas port size. I'll use the C for the normal setting and the O as the suppressed setting. https://i.imgur.com/5p7WIOt.jpeg https://i.imgur.com/02bgq7p.jpeg https://i.imgur.com/4FDRfWh.jpeg I cut the gas tube down to 8.125" https://i.imgur.com/2MHtwLG.jpeg https://i.imgur.com/qUchtuT.jpeg And cut and welded the piston to 9.56" (this is a test piston. I'll do a better one monday). I also cut the spring down to 55 coils. For the gas block retainer I used a knurled barrel nut and notched it for the latch. I also used a jamb nut to tighten against the muzzle brake. https://i.imgur.com/zykAqMa.jpeg https://i.imgur.com/7lwiojq.jpeg https://i.imgur.com/kerPWO9.jpeg  https://www.youtube.com/watch?v=fBH09yzqstAIf you kept it as a pistol, something like the Tommybuilt G36 brace would look awesome on it, if it was possible to fashion an adapter. |
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Posted: 11/27/2021 7:11:12 PM EDT
[#36]
Quote HistoryQuoted: If you kept it as a pistol, something like the Tommybuilt G36 brace would look awesome on it, if it was possible to fashion an adapter. |
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Posted: 11/30/2021 10:15:23 PM EDT
[#37]
Quote HistoryQuoted: I've thought about that but I'm too cheap to buy one lol. I'll be SBRing it after I'm done with college next year. Some braces and adaptions are more than the tax stamp. Enjoy it as an SBR - Its a work of art. |
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Posted: 12/14/2021 8:19:59 PM EDT
[#38]
@katzma awesome work. Where did you get that 80% receiver? I've got a kit waiting.
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Posted: 12/15/2021 12:00:02 AM EDT
[#39]
Quote HistoryQuoted: @katzma awesome work. Where did you get that 80% receiver? I've got a kit waiting. ESS bros makes them. They don't really advertise, but they list them on gunbroker and sell through weaponsguild. Expensive but they are works of art |
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Posted: 12/18/2021 7:26:27 PM EDT
[#40]
Quote HistoryQuoted: Thank you. ESS bros makes them. They don't really advertise, but they list them on gunbroker and sell through weaponsguild. Expensive but they are works of art Thanks, I'll look them up! |
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Posted: 12/31/2021 9:36:08 AM EDT
[#41]
@katzma THANK YOU for this amazing thread! It has been an absolutely critical source of info (and inspiration) for my build. So far everything checks out and feeds/ejects just fine. Hope to get to the range this weekend.
 Attached File |
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Posted: 2/5/2022 11:28:49 AM EDT
[#42]
Quote HistoryQuoted: @katzma THANK YOU for this amazing thread! It has been an absolutely critical source of info (and inspiration) for my build. So far everything checks out and feeds/ejects just fine. Hope to get to the range this weekend. https://www.ar15.com/media/mediaFiles/276315/2345296A-61F5-4A71-8D52-9BC0411EC6ED_jpe-2222893.JPG That is quite nice. I still haven't done anything with my parts kit. |
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Posted: 2/24/2022 7:18:58 AM EDT
[#43]
Still haven't messed with my parts kit lol.
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Posted: 4/17/2022 4:48:43 AM EDT
[#44]
I just picked up a parts kit.
How do you headspace this build? |
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Posted: 4/17/2022 11:43:11 AM EDT
[#45]
Quote HistoryQuoted: I just picked up a parts kit. How do you headspace this build? |
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Posted: 4/17/2022 12:20:01 PM EDT
[#46]
Hopefully someone will do 80% builds for us that don't have tools or knowhow.
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Posted: 4/20/2022 5:58:12 PM EDT
[#47]
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Posted: 4/21/2022 1:33:10 PM EDT
[#48]
Quote History@katzma, Why have you decided to get rid of your AR 70/90 and accessories? Sven Manticore Arms |
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Posted: 4/21/2022 1:44:04 PM EDT
[#49]
Quote HistoryQuoted: @katzma, Why have you decided to get rid of your AR 70/90 and accessories? Sven Manticore Arms |
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Posted: 4/24/2022 8:18:25 AM EDT
[#50]
Just leaving this here.. I’m not the seller and not even sure he’ll ship internationally
https://www.ebay.it/itm/Slitta-Picatinny-per-BERETTA-AR70-90-/313859107966?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l6249&mkrid=724-127637-2357-0 |
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