Home made SKS Gas Regulator

[goldenbb]

Found a clever SKS gas regulator mod on another board by a member named "destrux". He indicates that an opening of only about 5% the area of the present gas bleed hole still allows the piston to actuate properly. This mod was done to make cycling less violent and possibly improve accuracy. Any one done something similar? What results have you had? Goldenbb.

Everything that follows is courtesy of "destrux"

Here's the pics of my regulator. It's along the lines of what the OP had in mind.

If I had more time and a better mill I could mill a flat onto the gas block, drill a small hole for a detent pin and make it adjustable with a bullet tip like the fancy $2,000 rifles have. I'm happy using a wrench.

 

[Beater]

how does the gas vent? you have a slot cut that the bolt closses off?

 

[boots-]

from the pic looks like the bolt blocks some of the gas leaving the barrel as you thread it out it provides less of an obstruction

 

[Beater]

that makes cents

 

[Crack Feather]

Hmmm...
Interesting. What board?

 

[boots-]

this is pretty cool btw ( i forgot to say so earlier. only thing i think i would change would be to make it a slot head so a tool to adjust it in the bush is a little easier to track down. or bettter yet drill into the head for the little rod in the cleaning kit to fit into.

 

[goldenbb]

Hmmm...
Interesting. What board?

Survivor's SKS Boards.

http://www.sksboards.com/smf/index.php

 

[Calum]

Not to poo poo on an interesting bubba project but I can't see how accuracy can be effected as by the time the gas is pressured up enough to move the piston the bullet has left the barrel.

Also I'm pretty sure the Soviets did some damn fine R&D around what works and what doesn't with this rifle design which was already in active service for several years in the form of the PTRS 41 anti tank rifle.

http://en.m.wikipedia.org/wiki/PTRS-41

 

[Red_Liner740]

The rifle is designed to be robust and used in extreme conditions with variety of so-so ammo and still cycle properly. This leads to, lets call it "vigorous" cycling of the action. Not necessary in most cases.

the SVT-40 has an adjustable gas block....why is it okay for that rifle to have it but not the SKS?

Not to poo poo on an interesting bubba project but I can't see how accuracy can be effected as by the time the gas is pressured up enough to move the piston the bullet has left the barrel.

Also I'm pretty sure the Soviets did some damn fine R&D around what works and what doesn't with this rifle design which was already in active service for several years in the form of the PTRS 41 anti tank rifle.

http://en.m.wikipedia.org/wiki/PTRS-41

 

[Bazzoka_Joe]

they are to different designed just look at the piston size on a SVT-40 vs the one on the SKS the sks piston provide more power and seriously i dont see why messing whit a well working and reliable gun

 

[boots-]

the why would be the ability to not throw brass all over the place when shooting somewhere where you dont want to make a mess, or want the brass to reload (i dont know if people reload x39) and still be able to open it up and have all the reliability

 

[DILLIGAF]

I rather drill the gas holes on the tube bigger...

 

[Rocket Surgery]

that makes cents

lol

 

[Curtton]

I rather drill the gas holes on the tube bigger...

that would not help bcos the holes you talking about are gas vents to relieved pressure behind the head .

 

[supernova]

I think he is referring to the "gas tube mod" where extra holes are drilled to vent gases and reduce drive pressure on the piston.

that would not help bcos the holes you talking about are gas vents to relieved pressure behind the head .

 

[boots-]

I rather drill the gas holes on the tube bigger...

this works great, my buddy did it to his and it works flawlessly. however it dosnt give you the option of "opening up" the gas, if say its -35 outside, or your having other problems that may make the gun not function as well

 

[DILLIGAF]

-35 Im inside by the fire... lol....

 

[TRaTSeRiF]

-35 Im inside by the fire... lol....

And what if the Germans invade?

 

[TERMINATOR101CA]

And what if the Germans invade?

They too, would be by the fire at -35...........ze germans don't likenz ze gold eizer.

 

[supernova]

worked for Russia

They too, would be by the fire at -35...........ze germans don't likenz ze gold eizer.