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Author Topic: SAR80  (Read 2906 times)

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Offline ThatMedic

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SAR80
« on: January 31, 2017, 10:20:42 AM »
Picked up a SAR80 from Bowman along with a PM63 RAK because they were on sale and I bought a barrel off flea bay and that one part justifies then entire parts kit, did I mention they were on sale? Anyways back to the SAR80. Simplistic design. Very similar to the AR18/180 variant. Takes standard AR15/M16 mags. Been struggling for the last week like everyone else removing the barrel stub from the trunion with no such luck so far.
You can't fix stupid but you can sedate it with 10cc's of STFU

Offline ThatMedic

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Re: SAR80
« Reply #1 on: January 31, 2017, 10:58:02 AM »
Forgot to add while I was letting the stub soak in a 50/50 of acetone and ATF last night I got the FCG group set up. Below is a picture, top is a standard AR15 FCG and bottom is the SAR80 FCG. Not much difference. Hammer is reset by a small lever closest to the magwell in the first post. Bolt goes by trips lever, resets hammer.

I removed it along with its spring, shaved the front of the hammer down where the trip lever would sit and cut off the tail on the disconnector, no modifications to the trigger are needed. I don't see why you couldn't just swap an entire AR15 FCG in there also. I plan on placing the pin that held the trip lever back in and welding it into the lower.

Since the upper is the firearm part according to the ATF, I plan on simply blocking off the area the trip lever goes into with a piece of metal, similar to a UMP vs USC, thus one can not install a the upper on a lower that contains the trip lever and requires the modified upper to be placed on a modified lower.

922r wise I want to say it is at 18? Lacks barrel extension and sear. US mags is 3, US disconnect makes 4, US hammer makes 5, receiver makes 6, US barrel(modified AR180b barrel) makes 7, and US operating rod/charging handle for AR180 from Armalite makes 8. I like the charging handle for the AR18/180 better, it is larger and it was only $10, fits perfectly too. Other options would be the trigger and the flash hider. Hopefully that satisfies all conditions.
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Offline sdk1968

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Re: SAR80
« Reply #2 on: January 31, 2017, 12:12:39 PM »
cool build..  tagged to follow. 
of course i'm here.  this will be fun!

Offline ThatMedic

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Re: SAR80
« Reply #3 on: January 31, 2017, 04:52:28 PM »
VICTORY IS MINE!
Got the barrel and trunion separated. Funky looking trunion indeed, didn't know it went that far past the edge of the receiver. Used a barrel vise for FAL, a homemade extension torque wrench for the trunion consisting of a demilled ar15 bolt and split half inch socket welded together, 20 ton press, and break over bar. Threads are ~0.805 x 16tpi. Also got the pin for the trip lever welded in to the lower and glass beaded the lower. Progress has been made. I have two AR180B barrels from GPC, one was suppose to be a heavy and the other standard cut but they F'ed up and sent two heavy. Gonna send one back and see if the standard profile is closer to the SAR80, if anything else it is less meat to cut.
You can't fix stupid but you can sedate it with 10cc's of STFU

Offline ThatMedic

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Re: SAR80
« Reply #4 on: January 31, 2017, 10:27:10 PM »
I've cleaned and degreased the lower, left it hanging in the garage, going to try and paint it tomorrow and reassemble it. Starting to get exciting now.

Here is a mock up of the SAR80 with one of the heavy profile AR180b barrels GPC has. Still waiting on the standard profile one to come in. Could easily be turned to fit. I'm not 100% sure on the distance from the gas block to the trunion but the ring noted seems to be very close if not right on the dot. Well that's all for tonight. Will work on the receiver tomorrow some. Not sure if savaging it or just starting over would be a better idea. Might try both. I got a 10.75" barrel that would make a great pistol upper or SBR!
You can't fix stupid but you can sedate it with 10cc's of STFU

Offline Blackwing

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Re: SAR80
« Reply #5 on: February 01, 2017, 10:15:14 AM »
Can you only get bowman kits through GB? Not up on my acronyms, GPC?

Offline Sevo

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Re: SAR80
« Reply #6 on: February 01, 2017, 10:19:18 AM »
No email regina.. I will get the email in a few

cheaper to go through her.
WTB- M60  Parts- any and all, including E/D
WTB- 1918 BAR parts-  need internals and trigger group
WTB- MG34/42 parts- any
WTB- MAC SMG parts/kits

Offline Sevo

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Re: SAR80
« Reply #7 on: February 01, 2017, 10:20:10 AM »
WTB- M60  Parts- any and all, including E/D
WTB- 1918 BAR parts-  need internals and trigger group
WTB- MG34/42 parts- any
WTB- MAC SMG parts/kits

Offline ThatMedic

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Re: SAR80
« Reply #8 on: February 01, 2017, 10:20:48 AM »
Can you only get bowman kits through GB?

@Blackwing
No. You can direct buy by emailing sales@bowmanarms.com That is how I bought the two kits from em.

GPC = gunpartscorp.com also called Numrich
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Offline Sevo

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Re: SAR80
« Reply #9 on: February 01, 2017, 10:21:12 AM »
looking forward to this thread.. I can't wait see what you come up with

Thank you for taking the time to document it.

side note, how much were the PM63
WTB- M60  Parts- any and all, including E/D
WTB- 1918 BAR parts-  need internals and trigger group
WTB- MG34/42 parts- any
WTB- MAC SMG parts/kits

Offline Sevo

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Re: SAR80
« Reply #10 on: February 01, 2017, 10:22:56 AM »
sorry for multiple posts.. Whats the plan for receiver?
WTB- M60  Parts- any and all, including E/D
WTB- 1918 BAR parts-  need internals and trigger group
WTB- MG34/42 parts- any
WTB- MAC SMG parts/kits

Offline ThatMedic

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Re: SAR80
« Reply #11 on: February 01, 2017, 10:30:50 AM »
PM63 kits were 89.95 minus 5% if paid with USPS MO. Came with a short mag, a standard mag, and a cleaning kit

Not sure on the rewelding. Receiver is 1.5mm thick and the bottom has little to no metal spanning it. Tried tacking it and it is not having it. It is bowed and bent out of place between the demill and me putting it in a vise. I took some dimensions and my brother is going to do a line drawing later for me. I'm thinking it would be easier to just bend a new one. There is a small rail the bolt uses as a guide on the left side with a dogleg on the bottom of it, that could easily be plug welded or spot welded to the receiver. I have some 4130 2mm thick plate I might try. 1.5mm would be better.

You can't fix stupid but you can sedate it with 10cc's of STFU

Offline Blackwing

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Re: SAR80
« Reply #12 on: February 01, 2017, 10:44:14 AM »
So, 16 gauge steel then. How much$$ on the SAR kit?

Skyhighplt

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Re: SAR80
« Reply #13 on: February 01, 2017, 11:55:40 AM »

Offline ThatMedic

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Re: SAR80
« Reply #14 on: February 01, 2017, 09:48:39 PM »
Got the lower painted and assembled. Couple runs in it but it's only my second time coating anything. Figured the dust cover out. Nice little mock up attached. Also found a 24x24 sheet of 16ga sheet metal behind my tool box. Gonna try to get something press out around this weekend. Trying to save that receiver is the equivalent of trying to reweld a torch cut stamped Ak receiver, I just wouldn't advise it.
You can't fix stupid but you can sedate it with 10cc's of STFU

 

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