CALGUNS,
I'm seeking advise on how to best block and convert two high cap original USGI M1 carbine mags into 10 rounders and legally list them for sale. I sold my USGI M1 carbine years ago and I do not have use for these anymore. Your suggestions would be greatly appreciated. Thank you.
I'm seeking advise on how to best block and convert two high cap original USGI M1 carbine mags into 10 rounders and legally list them for sale. I sold my USGI M1 carbine years ago and I do not have use for these anymore. Your suggestions would be greatly appreciated. Thank you.

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