HK53SD

[MSOGDAWG]

Soooo, my google fu is weak I guess. I cant find much in the way of an HK53SD beyond airsoft. Is it real? Has it been done? Was it reliable? I get the whole really short barrel, rotation, baffle strike, trying to get subsonic 5.56/.223 ammo discussion. I just wonder if there has been a reliable variant that was made, even if it was just to quiet down standard ammo in an SD looking appearance.

 

[Manofdusk]

Soooo, my google fu is weak I guess. I cant find much in the way of an HK53SD beyond airsoft. Is it real? Has it been done? Was it reliable? I get the whole really short barrel, rotation, baffle strike, trying to get subsonic 5.56/.223 ammo discussion. I just wonder if there has been a reliable variant that was made, even if it was just to quiet down standard ammo in an SD looking appearance.

Yes, a 53SD is possible. I built mine without any input from the experts because most were saying it couldn't be done. Good thing I didn't ask them because the one I built runs perfect. I used an RCM 53K barrel, a factory 53 bolt carrier and an RCM #15-65 degree locking piece. I only have 2 suppressors and both are 3 lug 9mm's, one is an old Special Ops Shop Genesis 9 and the other is a Gentech Raptor II 9mm. Neither suppressor makes the 53SD sound like an MP5SD but you don't need hearing protection when you shoot it.
I also built a 51SD and it runs great too.

 

[ORL-LLC]

Yes they do exist, just find the right locking piece that works with your can.

 

[Manofdusk]

Yes they do exist, just find the right locking piece that works with your can.

View attachment 3964
View attachment 3965

Absolutely correct!

 

[MSOGDAWG]

Time to really start thinking hard about a build.

 

[Manofdusk]

Time to really start thinking hard about a build.

Here's a good start for your 53SD build.

GunBroker.com - Error

Then gather up the rest of the parts needed and I'm sure there are enough folks here to help you when and if you have any questions.

 

[Manofdusk]

Time to really start thinking hard about a build.

Oh, and Semper Fi Bro!
0311/0331/5711
'74-'82

 

[Grease Gunner]

That 53SD is sexy!!

 

[HK53King]

So Awesome Indeed Sir X2!

 

[HK53King]

So... No one else does the HK53SD Sexiness?! = too much Pure Sexiness Ha Ha!?
...Thinking about a GSL Multi Cal (.30 cal.+) can, suppose to handle 5.56/.223 with 7.5" bbl. Reckon would need a #7 or even a #8 locking piece? - O boy, here we go with the LP business again lol!
... BUT that would still not be SD level sexiness...

 

[HK53King]

So no one is currently bringing or has Sexy back, HK53 SD IN 5.56? Yes many say the 5.56 out of a 8.3" bbl is basically not worth it/PIA.... The juice is not worth the squeeze concept.

 

[AGG]

I think that they are awesome, especially with a fun switch.

Tony

 

[HK53King]

Yes Sir indeed, w/o a fun switch it's just an imitation at best IMHO. Such a simple pleasure but so deprived because of a few criminal scumbags from the 1930's and gutless scared shitbags in government... doom on old NFA and GCA as slavery, must end. 87 years of stupid BS fake law must die.

 

[Manofdusk]

Yes Sir indeed, w/o a fun switch it's just an imitation at best IMHO. Such a simple pleasure but so deprived because of a few criminal scumbags from the 1930's and gutless scared shitbags in government... doom on old NFA and GCA as slavery, must end. 87 years of stupid BS fake law must die.

Amen Brother... ALL laws that prohibit or restrict firearms ownership are UNCONSTITUTIONAL PERIOD!

 

[Ghilliebear]

It's a neat ideal we have built quite a few of them but bill Fleming built some back in the late Eighties 51SD and 53S d's yeah 53 Estes both the suppressors look like a cutting torch.

 

[HK53King]

WoW Looks Nice, Thank You For Sharing GBear!
That suppressor reminds me a bit of my first one a... Huntertown Arms Kestrel AK...

 

[Grease Gunner]

I like and want!!

 

[Manofdusk]

It's a neat ideal we have built quite a few of them but bill Fleming built some back in the late Eighties 51SD and 53S d's yeah 53 Estes both tView attachment 4317he suppressors look like a cutting torch.

View attachment 4315View attachment 4316

Awesome pieces Ghillibear.

 

[MSOGDAWG]

It's a neat ideal we have built quite a few of them but bill Fleming built some back in the late Eighties 51SD and 53S d's yeah 53 Estes both tView attachment 4317he suppressors look like a cutting torch.

View attachment 4315View attachment 4316

Ooooooh Daddy LIKEY A LOT!!

 

[MSOGDAWG]

If I didnt have money tied up in acquiring a FA M4 I would be hitting you up Gbear!! Soon Maybe....soon