Selecting a precision built lower receiver is the most critical first step to building your dream AR. That's why a New Frontier Armory C-4 Billet Lower should be your first choice. This is a no nonsense billet aluminum lower designed and built on state of the art precision CNC machines right here in the USA. It features a beveled magwell and simple clean lines that will look great for years to come. Its multi-caliber marked and suitable for 5.56 NATO, .223 Rem, .300 BLK, or 6.8 SPC. The upper tension screw is included. Built to perform, this is a serious lower for those that take their firearms and shooting experience seriously. It has a mil-spec MIL 8625 type III class 2 hard anodized black finish to protect it from anything and everything.

This C-4 Complete Lower Receiver is already assembled and ready for your favorite upper. It features a standard lower parts kit, mil-spec receiver extension and a B5 Bravo SOPMOD stock. Start your next AR build off the right way with a solid platform from New Frontier Armory. Get a Complete C-4 Lower Receiver Assembly.

Specifications and Features:
New Frontier Armory Complete C-4 Lower (C4LOWER-C)
AR15 Complete Lower Receiver Assembly
.223/5.56 Multi-Caliber Marked
7075-T6 Billet Aluminum
Beveled Magwell
Compatible with 45 and 60 Degree Short Throw Levers
Upper Tension Set Screw Included
Integrated Large Winter Trigger Guard
Mil-Spec Component Compatible
MIL 8625 Type III Class 2 Hard Anodized
Matte Black Finish
Weight 2.35 lbs

Includes:
Standard Lower Parts Kit
Mil-spec Receiver Extension/Buffer Tube
B5 Systems Bravo SOPMOD Stock Body