Si lower parts kit - Strike Industries AR Lower Receiver Parts, Less Trigger, Hammer, Trigger Guard, Pistol Grip Assembly.

I have always found Strike industries products to be high quality. This is a great deal for an LPK, but do realize it is not their enhanced LPK. The enhanced LPK has a couple better features, but if you’re going a budget route but still won’t good quality, this is a good choice.