It will work... but it is only a slight upgrade from a mil-spec trigger. You'd be better off with a complete trigger assembly. This build was for a friend, so I built it to his preferences... Here is the installed Mega Tactical Trigger in a billet, ambi, NiB coated Mega AR15. I used the trigger with a WMD NiB hammer and a WMD NiB disconnect. (It also has a WMD NiB Bolt and WMD NiB Cam, in a Melonite treated AA Piston Conversion) The total price for this trigger assembly was about $120.... He could have had a MUCH better trigger for about $50 more. The trigger breaks smooth enough, but it still has quite a bit of creep and is much heavier than I prefer. I do like the feel of the more robust trigger, and that it is a single stage. The complete NiB coated system is EXTREMELY smooth.