SunDevil Milled AR15 Lower (not stripped) w/enhanced kit
Lightly used and in good condition SunDevil 100% Milled from Billet AR15 Lower with complete enhanced build-kit installed: Trigger & Hammer Group, Ambi-safety selector, New A3 Grip, aluminum Winter Trigger Guard, Extended Bolt Latch, Extended Take-down pins.
Just add your choice of stock and buffer assembly kit and you have a completed lower.
The SunDevil lower has the adjustable tension screw, insuring a tight fit between the installed upper. Just install the upper without the grip installed, tighten down the tension screw in the grip area and "Shazam!", a perfectly tight upper and lower! Here is their marketing BS from their website:
CNC Machined from SOLID BILLET
Stronger than castings or polymer receivers
Many areas reinforced heavier than GI spec
Exclusive* Tension Screw - Built into Lower Receiver
Price is $350.00 to your FFL