GETTING MY FRT TRIGGER FOR SALE TO WORK

I needed to put a lighter spring in my full sized M16 A2 clone but it surely ran wonderful. Tried again with the eleven.five" Comando Colt upper. No dice. Ran five hundred rounds of wolf by means of it today. Didnt harm the spring in any respect.I'm seriously leaning toward this just so I have one.  And then if/when much less expensive but equally