Back in the "Old Corps", a field expedient BFA for an M-16 could be had by firing a blank, racking the operating handle, and catching the spent case. One would then use a bayonet to cut the base off the empty, and then use the bayonet to unscrew the flash hider. You would then put the base, primer side up, on the end of the muzzle, and screw the flash hider back down. One would then point the weapon in a safe direction and use another blank to blow out the primer, and the restriction of the flash hole was enough to cycle the action. Since we were the first squad of the 2nd platoon, we always got to be the Aggressors, and probably fired 10 times the blanks of the rest of the Battalion.
(If you forgot and fired a live round, you caught the bolt carrier group under the right eye...)
Jonas has described how we did the BFA thang also. We used this method on our M60's and 16's albeit our M14's and Ma Duce didn't play well with this method of improvised better way to do it.
I haven't the time or stomach to watch the clip (dial up) so I'll ask if anyone noted a brake versus a flash supressor remembering that the "wilson" brake is identical to the bird cage GI version flash supressor. One will get a different "visual signature" from rifles equipped with such.
Anyone ask Jeb Bush why he's allowing a sheriff to use county employees to mislead the sheeple and lie to those who really know the answers already ?
Stay Safe !