Thats not really info imfo for anyhelp.
What ammo as in bullet type manufacturer or reload recipe.
Who built the gun and when. Was it a complete gun from armalite did you make it from parts or get it from someone who did. What parts were used. Or did you get it new complete from the factory.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent