Sks gas tube/rail mount system - NcStar SKS Gas Tube Scope Mount w/ Side Rails

Four stars it won’t let me pick how many stars for some reason I have a type 56 1963 Chinese arsenal 26 norinco! This is a solid item for a upgrade to run a red dot/ light/laser! No issues since installed! It says to hand fit soo we tackled the project! If you have the patience and time well worth it! It’s ALOT I MEAN ALOT OF SANDING! We sanded the back of the gas tube and the bottom of the rail on both sides to make it fit! It tells u to check piston seal inside the tube, mine didn’t have much suction on my thumb especially compared to factor gas tube, but we ran it anyways no problems on the range ran amazing!!