Great for the price - KAK AR-15 Lower Parts Kit

It's a plain Mil-Spec pets kit. Nothing fancy here. However, compared to my $70 CMMG parts kit, this blows it out of the water. The pins are strong, the trigger guard is oversized and looks pretty cool, as well as it's threaded so no need to worry about breaking your receiver. It's not going to add anything beautiful to your gun, but you could buy this and add in your own trigger and still be cheaper than buying any other parts kit without a FCG and grip.