IIRC it took a 1/16th inch drill bit to turn an AR-15 into a full rock-and-roll M-16. Never tried it myself.
And, of course, when seconds count you don't want to be looking for a gun. I used to teach violence when I was active duty, and never needed a gun for any of my classes.
And, of course, when seconds count you don't want to be looking for a gun. I used to teach violence when I was active duty, and never needed a gun for any of my classes.