Well, many gun owners along with others questioned the ATF and inquired the legality of shouldering a pistol with a stabilizing brace. Yesterday, 1/17/15, the ATF ruled that a stabilizing brace must be used for single handed shooting. The thousands of people who purchased these braces now have glorified paper weights. Here my take on the matter.
https://www.youtube.com/watch?v=NuJHeF7y9q4
https://www.youtube.com/watch?v=NuJHeF7y9q4
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