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3 Brownells M-16A1 Barrel Physicals – One Failed! (SEE DESCRIPTION FOR UPDATE)
3 Brownells M16-A1 Barrel Physicals One Barrel had a Chamber Issue and it failed the Front Sight Base Alignment Check. All three Upper Receivers are 1970 era Colt. After the video I swapped around Uppers and got the same results. The Uppers are worn but pass all Alignment Checks. It’s not the Uppers that caused […]