THE 5-SECOND TRICK FOR FRT TRIGGER

I attempted to obtain just one for a buddy, but They can be never in stock.  If I am unable to simply simply click and purchase, I'm not about to hassle.That's what I'm wondering.  I have a batch of aero lowers coming in and received a PSA Easter sale on a Make package.  Is it possible to operate one of those firing pins in a very 556?＊＊＊ï