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Old April 19, 2021, 03:14 AM   #1
Classic12
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HK model 502

I bought this HK model 502 shotgun. I don’t know much about it except what I heard from the LGS (rare, mainly delivered to police forces) and the little info I found on the internet

Is anyone familiar with this weapon ? There is also contradictory info whether it can shoot slugs

“Only buckshot can be fired due to the muzzle device that shapes the shot horizontally in an oval pattern”

“An unusual feature of the HK 512 shotgun was special shot diverter, mounted on the barrel of the gun. It was a sort of muzzle device, intended to create oval, rather than round shot patterns. Depending on the tactical situation on hand, this shot diverter could be set (rotated) for horizontal or vertical dispersion. It also allows use of most types of standard 12 gauge slugs.”

https://en.wikipedia.org/wiki/Heckler_%26_Koch_HK512

https://weaponsystems.net/system/196...20-%20HK%20512

https://modernfirearms.net/en/shotgu...guns/hk-512-2/



















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Old April 19, 2021, 03:15 AM   #2
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Old April 20, 2021, 06:16 PM   #3
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I am not familiar with that, but it is very cool.
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Old May 3, 2021, 04:43 AM   #4
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LGS had a 512 in for repair, took a couple of pics for comparison



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Old June 13, 2021, 04:23 PM   #5
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Update. HK sent me a pdf manual in German. It states that all conventional slugs can be used

I was a bit worried because after taking one apart it is clearly larger than the diverter exit



However the LGS whose 512 is pictured in this thread told me he fired slugs through it without problems, and the diverter is identical, except it’s mounted vertically on the 512

Now, the manufacturer’s manual states they can be used, and the LGS has actual experience shooting them.

So with a little apprehension I loaded just one round and fired. Indeed not problem so I fired a few more





Next time I’ll have to try some buckshots and see the pattern
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Old June 13, 2021, 04:34 PM   #6
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the diverter is a modern version of the duck bill used in vietnam on all usgi shotguns i/e: 870/m37/m12...etc. but to shoot a slug? wow. thats different. hey, if the maker say ok, then ok it is.
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Old June 14, 2021, 01:12 PM   #7
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Nice find Classic! That looks exactly like something I've never seen before. The wood is really nice as well!
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Old June 14, 2021, 02:00 PM   #8
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The diverter works best with smaller pellets. Number 4 buck is ideal.
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Old June 15, 2021, 07:24 AM   #9
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interesting bad guy target.
seems the bad guys cant afford semi auto hi cap pistols and still carry revolvers!
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Old June 15, 2021, 10:32 AM   #10
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Very cool gun.

Foster slugs have fins not to impart spin but to compress down in tight choke so one would think that device would act similar to a tight choke.


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