Go to M1 Garand - The greatest single battle implement ever devised. The M1 Garand. and under springs and things , look at and read all the data from tests with this plug and decide for yourself. IMHO, anyone who actually shoots his Garand should have this Ported Gas Plug, you will get different opinions I'm Sure, but I use one and have shot several different surplus and commercial loads and am completely satisfied with the performance.
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