Comes with everything for lpk, easy to install, quality was great, comes with ambi safety selector - Strike Industries AR Enhanced Lower Receiver Parts with Trigger, Hammer and Disconnector

Just put together my first AR and used this LPK. It was very easy to install and had all the pieces you need. The safety comes with a closeout so it's one sides or you can use it as an ambi safety selector with either a short or regular length selector. You can also choose either the normal or shortened safety travel detent. The bolt catch/release will not fit with the extended bolt levers because of its shape and size. Trigger feels awesome to me but I have nothing to compare it to since this is my first AR. Would highly recommend, no regrets at all.