I was hyped that I could pack a punch my weapons more than once thinking about all the possibilities but never got a chance to check it out until today. So here's what I learned you can't pack a punch some weapons multiple times such as the ray gun. If you pack a punch let's say a HAMR lmg you'll get an acog sight then go and pack a punch again it'll only cost 2,000 points but won't refill ammo just change the sight. So all it does it customize the weapon more to your liking, no extra boost in damage or more attachments. This is a really big let down. From what I tested you can pack a punch the weapon as many times as you want provided you have 2,000+ points.