To add something constructive to this thread I have hit the RI and OG and both feel the same. I helped a friend break in his RI and that thing had crazy pop once the metal sound changed to a crack sound. I also own 2 M7120s 1 OG and the other is what seems to be a Made in the USA RI and they both hit about the same just that the OG looks to have gone to hell and back and still has the metal sound on one side of the barrel, as far as durability goes they both are holding up no problems.