Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Where are these made?
Document: Nice piece. Mounted on an AR10 with vortex PST scope. wish is was american made
Fit and finish are nice, as one would expect from a premium brand. Made by third party in China though so ymmv
Very good rings, tight fit, well made for the cost the cantilever is perfect for my use. That being said but the instructions that come with it state that the ring screws should have a tension of 15 inch-pounds and the rail screws need 20 inch-pounds.I will have to buy a specialty tool for this light of a tension and it worries me how light it's rated to.
Works well and looks good on the rifle. I have this mounted to a BCM upper and needed to push the Vortex Viper PST to the proper position. The only wish that I have is that I would have bought a QD mount instead.
Works great, holds up to recoil very well (shooting 7.62). I have it mounted backwards on a SAI Socom II for the right eye relief, and works perfectly.
This mount is a great mount. Very little lapping was required to ensure perfect alignment of rings. You will not be disappointed in this mount. It is the same great quality one comes to expect from Vortex.
This is a great sight mount although it doesn't seem to be worth the money. It is light though and solid.
SEEMS TO WORK -- GETS JOB DONE AND HOLDS FIRMLY TO VORTEX PST SCOPE 6-24X50 --- LIKE IT VERY MUCH.
Quality mount. Easy to install and easy to keep spaced correctly while you are tightening down the scope rings. I really enjoy it and it seems to be very well built.
Nice mount, fit and finish are just like it is pictured and it fits securely to the Picatinny rail. The fasteners are metric, so make sure to use metric Allen wrenches when mounting your scope.
Answer: no