Suppressing older HK’s

[krw]

Do HK 91’s, 93’s handle suppressors ok?? Reason I’m asking is I am looking at buying PTr32 because of inventory of 7.62x39 ammo I have. It would be shot suppressed 100% of the time. I have never heard or read how reliable these are when suppressed. Thks!!
Krw

 

[higginsworksforme]

I looked this up for the HK-91 recently and you'll need this thing #17 locking piece

 

[ut755ln]

Do HK 91’s, 93’s handle suppressors ok?? Reason I’m asking is I am looking at buying PTr32 because of inventory of 7.62x39 ammo I have. It would be shot suppressed 100% of the time. I have never heard or read how reliable these are when suppressed. Thks!!
Krw

I have a 91, I have not shot it suppressed. The gun is over gassed, you will need to account for that somehow.

 

[Gasgun]

I have a 91, I have not shot it suppressed. The gun is over gassed, you will need to account for that somehow.

Not only is your 91 not overgassed, it’s not gassed at all.

 

[Charger442]

Not only is your 91 not overgassed, it’s not gassed at all.

Roller Delayed Blowback for the win!

Typically suppressing these a different degree locking piece will fix any issues. i wouldnt replace any parts until you see how it shoots with a can.

 

[Mudburner]

I know almost nothing about suppressors, but I do have knowledge of the PTR 32.

The Good
1. RDB design is awesome, in my opinion. In .30 NATO, (CETME C/Century 308/HK91) it is VERY mild. In 9mm, (Mp5 clones) it is one of the most fun guns I have ever shot. Easy hits at 200 meters) In 7.62x39 PTR 32 (which weighs in about 10lbs?) the design is very mild and controllable. With a Sig red dot, my PTR 32 is my most accurate 7.62x39 and is very pleasant to shoot. PTR 32 comes with an integral welded pic rail, which allows for easy & secure optic mounting. Best idea since sliced bread. Those claw mounts suck ass, imo cuz they can pinch the receiver.

The Bad
PTR 32 is heavier than an AK. 9-10 lbs. Also, mine is VERY magazine finicky.

Standard metal milsurp 30 rd magazines may or may not insert/fit/lock in. My PTR 32 would NOT take Std milsurp mags because of a factory front trunnion milling problem, and the magazine latch needs adjustment. I got them to fit & lock in, but they wouldn't feed. Yours maybe WILL NOT feed as well, because a std milsurp mag (which all AK mags are not interchangeable) sits/locks in too low and you get bolt over-ride every time. So... my PTR 32 likes and will feed reliably with ONLY certain polymer 7.62x39 magazines (Pmag? I forget which now) but please be aware of this known issue. When comparing surplus metal mags (Yugo, Hungarian, Chinese, Romy, ie commonly available) side by side with the (one) polymer mag that DID work, you could see that the polymer mag feed lips were taller and presented the round higher than the std surplus mags... which is why I got bolt over-ride with the milsurps. Other polymer mags like the "bullet" style Bulgarian didnt work, either. Once you find which magazine your gun feeds from, you're golden.

On my PTR 32 neither the front sight nor the rear sight are windage/elevation adjustable, other than the std HK drum sight marked 1 2 3 4.

The Ugly
There is no ugly. This rifle (when I overcame the mag feed problems) is very pleasant to shoot. Heavy: 0 recoil.

Oh, maybe one ugly... on mine, one of the rollers FELL OUT when I took it apart for inspection.

OK, another: my gun double-taps occasionally if I squeeze the trigger slowly. This can be corrected by firm trigger control.

Another plus: it appears that the bolt carrier, bolt, and bolt head are all interchangeable with CETME C, so easy to get.

One last comment: Weapons Guild & AK Files member "HolesCreek" is a gold mine of all things RDB, so he probably already has online answered whatever questions a guy will have, including suppressed. Enjoy!

 

[krw]

Thank You!!

 

[Jem472]

Is/are your cans low back pressure? You might consider preferentially running a LBP silencer so as not to interfere with the RDB system, if you have that option.

I have a PTR91, and I have cans, but I have not put the two together. The PTRs action seems violent in its own right so I haven’t been inclined to add a silencer to the mix. And it’s pretty front heavy already. Yours being a x39 negates my first concern, but perhaps not the second.

Mojo

 

[ut755ln]

Not only is your 91 not overgassed, it’s not gassed at all.

I understand how the HK works. I was not using over gassed to describe it like it is a DI rifle. I am using it to describe what I perceive to be an overly harsh recoil impulse and a lot of smoke/gas close to my face every time I pull the trigger without a can on it. I would also describe my 416 (piston not roller delayed) as over gassed for the same reason but I did not really notice shooting it as being unpleasant until I put a RC2 on it. I ended up getting an adjustable gas block from Atlantic firearms for the 416 with a suppressed setting which helped a lot.

I am not really sure what the right term would be.