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Old November 23rd, 2021, 11:40 AM #1
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HK flat bending jig?

I know these are available on HKparts and RobertRTG (although usually OOS at the latter). I have a 20 ton shop press I am finishing building now so I don't need a work around to needing one of those. I was hoping I could find a lightly used version of these, but try as I might they seem to be unobtainium other than buying new at a minimum of $450~.

What about the homemade versions? Has anyone used any of these (for those that don't like clicking links, photos of each, in the same order are below):

https://grabcad.com/library/mp5-bending-bending-jig-1#!

https://grabcad.com/library/hk-flat-bending-jig-1

Also, there is a 3D print version that at least a few people have reported works well:

https://www.thingiverse.com/thing:4614385

(bonus points for anyone who has done these flats about whether the other jigs available from HKparts and/or RobertRTG are necessary (mag/shelf locater barrel press, etc.)

(more bonus points if anyone has similar suggestions and first hand experience with the same for Klashnikovs, but I am primarily concerned with the HK variety)
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Old November 23rd, 2021, 01:14 PM #2
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I folded mine prior to the 2013 legislation passing. Is this still a concern? Also, I still have it in just that form. Who will weld and build for you? These are one of my favorite looking rifles.
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Old November 23rd, 2021, 01:41 PM #3
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I sent you a PM .
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Old November 23rd, 2021, 01:42 PM #4
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I have used the hk parts flat bending jig with another forum member and it made short precise work, no need for a mandrel afterward. I don't have one or of offer but I would definitely recommend it. I do have the long production style RTG weld jig that you are welcome to borrow.
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Old November 23rd, 2021, 03:22 PM #5
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Quote:
Originally Posted by FrankOceanXray View Post
I folded mine prior to the 2013 legislation passing. Is this still a concern? Also, I still have it in just that form. Who will weld and build for you? These are one of my favorite looking rifles.
certain configurations of most HK products are still Kosher (e.g. pistols). I'm planning to do the whole thing myself from bang to buck. This is far more than an Armalite (and perhaps more than a 19/2011, though far different).

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I sent you a PM .
cheers!

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I have used the hk parts flat bending jig with another forum member and it made short precise work, no need for a mandrel afterward. I don't have one or of offer but I would definitely recommend it. I do have the long production style RTG weld jig that you are welcome to borrow.
That is what I keep coming back to. The few reports from the 3D print part report the same results, but with flats costing $225 - and the reality that they will probably be impossible to replace in about a month - I am hesitant to cheap out based on an anonymous random comment (or three) from the internet.
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Old November 23rd, 2021, 07:15 PM #6
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Maybe ask around on the HKPro forum . Good luck with it .
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Old November 23rd, 2021, 08:06 PM #7
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Maybe ask around on the HKPro forum . Good luck with it .


I’ve looked over there on past threads and the usual response I’ve seen is “go ask on weapons guild.” But I have high hopes for MDS coming through like always
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Old November 23rd, 2021, 08:41 PM #8
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Here is some inspiration. This wasn't built from a flat tho.
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Old November 23rd, 2021, 08:54 PM #9
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Here is some inspiration. This wasn't built from a flat tho.
Nice!!! An SD is definitely in my future.
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Old November 23rd, 2021, 09:06 PM #10
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Nice!!! An SD is definitely in my future.
Waiting on tax stamps. Virginia to Md, then Md. to me .
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