|
No, a temporary failure like that is not illegal but the gun should be fixed to fire the proper way. But if someone were to deliberately fix a gun so it fired that way regularly, it would be illegal.
As noted, doubling is very common in target semi-auto rifles and pistols. I have seen a Ruger .22 auto rip off a whole magazine when the bolt going home jarred the sear off. Actually had to try it a couple of times just to make sure it was bad.
Actually, that AR-15 was probably being fired with a pull of the trigger (as mentioned) rather than the hammer following down, which usually won't fire a round. With the FA version, the gun can't fire until the bolt is closed and locked because it is the bottom of the bolt carrier in its final forward movement that trips the auto sear.
Jim
|