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Anyone build an 80% P320?

This is a discussion on Anyone build an 80% P320? within the P250, P320, & P320 X-5 Pistols forums, part of the SIG Sauer Pistols category; Originally Posted by illrohan I'm in the process now but lack of lpk's has me at a stale-mate If you wait for an LPK, you ...


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P250, P320, & P320 X-5 Pistols P250, P320, & P320 X-5 Pistols

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Old 05-21-2020, 06:01 PM   #16
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Quote:
Originally Posted by illrohan View Post
I'm in the process now but lack of lpk's has me at a stale-mate
If you wait for an LPK, you will grow old waiting.
Just source and buy the individual parts.
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Old 05-21-2020, 06:04 PM   #17
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Originally Posted by SIG32137 View Post
I went through this about a year ago. Even though I was capable of finishing the 80% FCU I decided to just buy a FCU for $230. It worked out to be the more cost effective way to go. Now if I wanted to build several 80% FCU's it might of been more cost effective. Also there is no real gun registration here in Florida. Good luck with it....
This ^^^

JSD is the only player and they are seriously over-charging.
I suppose they know that they had better "milk it" before some competition arrives on the scene.
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Old 05-21-2020, 07:19 PM   #18
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It isnít about saving money. Itís a fun project that requires minimal tooling. Itís also very convenient having everything shipped right to my front porch. Donít wait for parts kits. Buy the parts individually.

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Old 05-22-2020, 01:42 AM   #19
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OK First things first..Starting from scratch with a naked FCU:
You can get a JSD Supply Jig and a un-altered Frame and do all of the bending, drilling etc..
or just go to ABPrototype and get a finished FCU Frame ready to build for $29.99

https://www.abprototype.com/sig-saue...e-refurbished/

This video should convince you to just spend 30 bucks and get a FCU Frame ready to build.


A Cool Computer version of what he just did..


A Computer animation of the parts being installed into a FCU:


While you are at ABPrototype you may want to look around a bit..

Beside the FCU Frame they also have Refurbished FCU Complete Parts Kit for $189.00

https://www.abprototype.com/parts/si...eatured&page=2

So for...$189.00 + $29.99 = $218.99 you put it all together...

Or for $285.00 (might find it for less) you can buy a complete P320 FCU Assy. For the extra $66,00 it comes ready to drop into a grip.
Your decision..

https://www.abprototype.com/sig-p320-complete-fcu-new/
---------------------------------------------------------------------------------------------------------------------------------------

I have a M17 Manual Safety Frame coming ($59.00) and the Manual Safety Parts ($111.00) = $170.00
My goal is to use the parts from my FCU along with the M17 Frame & Manuel Safety Parts and build a M17 Manual Safety FCU.
In the end it will be a complete Serialized M17 Build.

This is the video that will be helping me with my M17 MS Build:


Hopefully this gives you some more insight as to a 80% build.
If nothing else some interesting videos to watch..LOL

Have a Great Day All!
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Last edited by Buds; 05-22-2020 at 03:15 AM.
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Old 05-22-2020, 03:19 AM   #20
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Again, itís not about the money. If you want to save money, buy a full gun and donít even bother with a stripped FCU.

Some of us have the tools, the ability, and the desire to make it on our own.
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Old 05-22-2020, 03:35 AM   #21
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Quote:
Some of us have the tools, the ability, and the desire to make it on our own.
That's the Spirit Granite7

Here ya Go:

MUP 1 Blank Frame: $99.00

https://www.abprototype.com/jsd-supply-mup-1-frame/

JSD Supply MUP 1 Jig: $149.00 (includes Drill Bits)

https://www.abprototype.com/jsd-supply-mup-1-jig/

FCU Small Parts Kit's $189.00 to $279.00

https://www.abprototype.com/parts/si...eatured&page=2

FCU Full Cost: MUP 1 Frame + MUP1 Jig+ FCU Parts= $437.00 to $527.00
You still need a Grip & Full Slide....Expensive P320...You could almost buy a Legion..definitely a X-Compact RXP
BUT
The Joy you had building your P320...Priceless! LOL!

Please add Pics when done.
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Last edited by Buds; 05-22-2020 at 03:55 AM.
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Old 05-22-2020, 06:03 AM   #22
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Anyone build an 80% P320?

I also spent extra for M35 cobalt drills because the provided HSS drill are not suited for drilling stainless. It was an added expense, but they cut much nicer and last much longer.



Last edited by granite7; 05-22-2020 at 06:36 AM.
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Old 05-22-2020, 06:31 AM   #23
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I don't get the 80% thing. It isn't cost efficient. If the gun grabbers ever get their way one of the first things they'll do is subpoena the sales records from the companies that sell 80% stuff.

Perhaps an 80% build makes more sense in strict states like California.

I used 0% lowers for a couple of my AR's. I machined the lowers out of billet aluminum. I suppose most people don't have the skills or access to the equipment to do that.
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Old 05-22-2020, 06:42 AM   #24
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I have one mostly finished. Bent the tabs and drilled the holes but I don't have a slide to fit to it

Seems like parts are harder to find/ more expensive lately, most gun stuff is that way right now. Hopefully that will change soon

It's certainly not cheaper. Just a fun side project
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Old 05-22-2020, 07:02 AM   #25
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Originally Posted by woody b View Post
I used 0% lowers for a couple of my AR's. I machined the lowers out of billet aluminum. I suppose most people don't have the skills or access to the equipment to do that.
Evidently, you DO get it. Or else you're stroking your ego.

We keep saying it's not about cost. It's a fun project, with very little tooling required, and it's very satisfying to shoot with something you made. The AR doesn't interest me at all, because I can only do Type II anodizing as a hobbyist. The beauty of the MUP-1 is that it is stainless and an interior component. The finished pistol looks and runs as good as one Sig made. If that's not enough for you, you can be excused.
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Old 05-22-2020, 09:31 AM   #26
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Quote:
Originally Posted by Buds View Post
That's the Spirit Granite7

Here ya Go:

MUP 1 Blank Frame: $99.00

https://www.abprototype.com/jsd-supply-mup-1-frame/

JSD Supply MUP 1 Jig: $149.00 (includes Drill Bits)

https://www.abprototype.com/jsd-supply-mup-1-jig/

FCU Small Parts Kit's $189.00 to $279.00

https://www.abprototype.com/parts/si...eatured&page=2

FCU Full Cost: MUP 1 Frame + MUP1 Jig+ FCU Parts= $437.00 to $527.00
You still need a Grip & Full Slide....Expensive P320...You could almost buy a Legion..definitely a X-Compact RXP
BUT
The Joy you had building your P320...Priceless! LOL!

Please add Pics when done.
Actually, the MUP is only $60 if you buy a full build kit from ABPrototype.

So $720 for a complete M17 kit with MUP (all small parts, complete slide and barrel, case, mags, grip module, etc), another $140 for the jig.

Yeah, you could buy a Legion for that, but this is a small price to pay in states that have purchase limits, or if you're not into high-risk boating, or paying cash for guns in a parking lot, or if you like projects.

If you develop a real case of P320 Signess, the cost premium per unit drops quickly, to the point where in the end you're just paying extra for the MUP insert. But nobody here ever develops that illness, surely.
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Last edited by Croak; 05-22-2020 at 09:34 AM.
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Old 05-22-2020, 01:41 PM   #27
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Quote:
the cost premium per unit drops quickly,
That is a part that I really did not think about..
It's the first FCU that costs the most.
Each subsequent build is just the MUP1 Frame.

Plus other advantages depending on the State you live in...

Quote:
No FFL is REQUIRED. THIS IS NOT A FIREARM. JSD has their ATF determination letter stating this is not a firearm.
Since I live in free state (at least for now) I can purchase as many Stripped FCU Frames that I want with no registration.
In fact if I ordered say 100 FCU's in bulk I imagine it would be one FFL and one call for my NCIS background check.
Not 100 individual FFL's and 100 NCIS calls for each frame.

This from the ATF Website:

Quote:
A transferee completes ATF Form 4473 for a single firearm the transferee decides to acquire an additional firearm.
The second firearm may be recorded on the same Form 4473.

The acquisition of the two firearms is considered a single transaction.
Therefore, the licensee is not required to conduct a new NICS check prior to transferring the second firearm.

Last edited by Buds; 05-22-2020 at 02:09 PM.
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Old 05-22-2020, 02:42 PM   #28
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Originally Posted by Buds View Post
That is a part that I really did not think about..
It's the first FCU that costs the most.
Each subsequent build is just the MUP1 Frame.
You can borrow one too

I bought the jig, used it for one MUP, and mailed it to another guy in my group last week

Or you can buy one, do your build, then sell it for a little less
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Old 05-22-2020, 03:13 PM   #29
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Quote:
Originally Posted by Buds View Post
That is a part that I really did not think about..
It's the first FCU that costs the most.
Each subsequent build is just the MUP1 Frame.
Which is still a butt ream, considering you can get a genuine frame for $20.
And you don't have to buy a drill press and you don't have to buy a jig.
JSD must have a 80-90% margin on those frames.
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Old 05-22-2020, 05:17 PM   #30
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None of this is to save money. Period. That argument is done. Wave goodbye

I'm sure everyone finishing an 80% MUP has their own reasons for doing so. I can't speak for anyone else but I'm finishing one because I can. It's a fun project
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