Turn SKS into bolt action to test a scope without damaging it ?

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noea77

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Hi, Im looking at testing out a new scope on my sks but dont want to ruin it by shells possibly hitting it (I dont have a shell deflector). Im wondering if I take off the gas piston, handguard and gas cylinder, piston extension, and piston return spring would this be ok and not do any damage to my gun ? Is there anything else that needs to be done and/or do I just need to take off gas cylinder and gas piston ? Thanks
 
I'd leave the cylinder on and remove the piston only, keeping the bolt carrier in the normal state. If you're worried the gas pressure may still half-shuck your bolt carrier you could pack a ball of greased tinfoil in the cylinder to hold back the pressure.
 
'Mark Williams' is that a plug you put in the gas tube instead of the gas piston to block gas flow ? And is it a fairly tight fit ? Ill have to take a look in my shed to see if I can find any steel that might work like the pics you sent.

'Surrey Boy' have you tried this before with tin foil ? This might be a better option as it would be easier to get the tin foil out to get into semi mode again. Jamming another piece of steel in it, Id get worried Id jam it in to hard and not be able to get it back out.
 
I have thought of it before, id leave the piston in but find a way to prevent it from moving while its still in the tube, without it all you will have gas escape and make the projectile loose a bit of power, and of course the gas in your face. Or find a way to plug the gas/ piston tube
 
noea77 said:
Hi, Im looking at testing out a new scope on my sks but dont want to ruin it by shells possibly hitting it (I dont have a shell deflector). Im wondering if I take off the gas piston, handguard and gas cylinder, piston extension, and piston return spring would this be ok and not do any damage to my gun ? Is there anything else that needs to be done and/or do I just need to take off gas cylinder and gas piston ? Thanks
Click to expand...

First question is how are you gonna mount the scope?

If the answer is with a receiver cover mount, I would worry about finding a new mounting method first.

If you have a proper mount, then you gotta think about where the gases are going.... ;)
 
noea77 said:
'Mark Williams' is that a plug you put in the gas tube instead of the gas piston to block gas flow ? And is it a fairly tight fit ? Ill have to take a look in my shed to see if I can find any steel that might work like the pics you sent.
Click to expand...

I made it so it's a push fit. I think the length is important, it wants to be so everything is as tight when the tube with the plug is installed.
Once you have the plug the conversion can be done in under 30 seconds. It makes a big difference to the accuracy and the rifle is quieter, there is slightly more felt recoil.

It's safe Dsiwy :rolleyes:
 
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mlehtovaara said:
First question is how are you gonna mount the scope?

If the answer is with a receiver cover mount, I would worry about finding a new mounting method first.

If you have a proper mount, then you gotta think about where the gases are going.... ;)
Click to expand...

Yes with a receiver mount and I filed it down perfectly and it doesnt budge. Will google this topic more on other sites
 
Mark Williams said:
I made it so it's a push fit. I think the length is important, it wants to be so everything is as tight when the tube minus the gas piston is reinstalled.
Once you have the plug the conversion can be done in under 30 seconds. It makes a big difference to the accuracy and the rifle is quieter, there is slightly more felt recoil.

It's safe Dsiwy :rolleyes:
Click to expand...

Thanks, now I gotta find something that wont need to much sanding down in order for it to be a good fit. How long is yours ? 2 - 2 1/2 inches ? Did you buy your plug from a hardware store or have some already ? Thanks for your help
 
noea77 said:
Thanks, now I gotta find something that wont need to much sanding down in order for it to be a good fit. How long is yours ? 2 - 2 1/2 inches ? Did you buy your plug from a hardware store or have some already ? Thanks for your help
Click to expand...

PM me your address and I will send you one. You really need a lathe to do it properly.
 
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Haven't done it myself, no. But I have used tin/aluminum foil as a makeshift gasket before and it works reasonably well. Tin is better than aluminum.

I don't know what kind of mechanical devices you have access to, but a screw, stud, pin, bolt/washer, BB, a bullet from a 7.62x39 cartridge could all work for a limited number of rounds. Grease will work as a mild adhesive that won't damage your gun.

Keep the gas cylinder on and the spring in the bolt carrier to prevent injury to yourself.
 
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Surrey Boy said:
Haven't done it myself, no. But I have used tin/aluminum foil as a makeshift gasket before and it works reasonably well. Tin is better than aluminum.

I don't know what kind of mechanical devices you have access to, but a screw, stud, pin, bolt/washer, BB, a bullet from a 7.62x39 cartridge could all work for a limited number of rounds. Grease will work as a mild adhesive that won't damage your gun.

Keep the gas cylinder on and the spring in the bolt carrier to prevent injury to yourself.
Click to expand...

Thanks for the help. Just dont wanna ruin a scope or my beautiful face with the gas etc LOL.
 
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