The NcStar gas tube is too large for the gas piston to properly seal. I've tried the original gas piston for my Norinco, a Tapco, a Polytech, and a Precision Prototype & Machine all with the same results.
The manufacturer does not state if the handguard and gas tube can be completely separated. I recommend contacting the manufacturer for that information.
NcStar does not state where the NcStar SKS Gas Tube Scope Mount is made. I recommend contacting NcStar for that information.
The rail sections on the side of the NcStar SKS Gas Tube Scope Mount can be removed but from what information I could find the top rails cannot be removed.
The NcStar SKS Gas Tube Scope Mount w/ Side Rails is manufactured just slightly longer by a few thousandths, so that it can be hand fitted to the various manufacturers of the SKS rifles. It may require some fitting but should work.
It comes with the gas tube.
Yes. The NcStar SKS Gas Tube Scope Mount w/ Side Rails will fit the SKS and all the various manufacturers that make versions of the SKS. Some hand fitting may be required for a secure fit.
Yes, it should however may require slight modification for proper fit.
There are a number of different Monte Carlo stocks on the market for the SKS, and fitment can vary depending on which one you are using. Please contact us at techsales@opticsplanet.com with more information and we will be happy to assist.