While the above is accurate, I do suggest you try Inch vs. Metric if possible before you buy. I like inch selectors, but I can't stand the inch furniture. The Metric fits me better, to the point that I don't even shoot my Inch patterns anymore, except the heavy barrel.
As to receivers, I have 17 FAL's, with builds on Imbel, Century, DSA, and old Entreprise. All work flawlessly, but thats due to the quality of the build.
Davesrb
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