Armaspec lower parts kit - Armaspec .223/5.56mm Gun Builders Lower Parts Kit

I recommend this kit, it's awesome. Fit and finish of the parts are great. The anti-walk triggers pins are a nice bonus. The front and rear takedown pins provide a nice and tight fit. The mag release button is a little deeper than a milspec mag release button which makes easier to use in my opinion.

The ambi safety is nice as well. It's 45/90 safety, so you will need to pay attention to how you insert it into your lower. Make sure the safety detent engages the correct groove. The safety tumbler has two grooves on the right side, a short one for a 45 throw safety (need a lower that is capable of doing this) and a longer groove for the regular 90 degree safety throw. Additionally, for my build, I needed to install the safety before the trigger (Hiperfire).

I used this kit on an Aero Precision stripper upper and lower that I put together.

Overall, I'm happy with the results. Quality kit at a great price. Some safeties alone cost more than this kit and the Armaspec kit comes with an ambi-safety.