i think they are the same thing?
have a look:
https://shopquestar.com/shopping65/s...?id=1848&bc=no
i think they are the same thing?
have a look:
https://shopquestar.com/shopping65/s...?id=1848&bc=no
not the same thing.
I think that's a typo in thier ad.
That's an acr barrel. The recess machined 1/3 up from the bottom is for a clamp that secures a guide for the piston... the gas port is also a different size than an AR barrel
The gas port hole is also smaller on an acr barrel... but good luck with your build.