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Fail Zero AR-15 Semi-auto Basic EXO Coated BCG and Hammer

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A completely assembled, ready to install AR-15 Bolt and Carrier System. Kit includes six critical parts that are treated with EXO Technology, a revolutionary surface technology that provides permanent dry lubricity, radically improves the performance of your AR-15 and eliminates the need to apply oil or grease to treated parts for the life of the weapon. Treated parts include; Bolt, Bolt Carrier, Hammer, Extractor, Cam Pin, Carrier Key. This kit has fired over 20K rounds in a standard anodized upper.

Specifications and Features:
Case Hardened, Shot Peened and MPI Bolt (Magnetic Particle Inspected)
EXO Coated Bolt (40% more wear resistant than Chrome with a very Low Coefficient of Friction)
Mil-Spec Gas Rings
EXO Coated Carrier
Gas Key with EXO Coated exterior, Chrome Lined ID
Gas Key Hardened to USGI Specifications
Grade 8 Hardened Fasteners
Black Extractor Insert
Mil-Spec Staked Gas Key
Firing Pin and retainer 
Total number of Reviews: 2

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5.0 5
"Look we all know you should carry a back-up bolt assemble. The question is which one? Well your search stops here! This is by far the best bolt carrier group (EXO Coated) for the money. Ther are other, cheaper coated BCG's out there but don't waste your time or money. Nothing I have ever shot can come close to competing with the quality and reliability of this BCG. 1000 rounds with zero Out-of-battery issues. When your life depends on it? Buy the best."
5.0 5
"Ordered is as a upgrade for my DPMS . The fit and finish is great fits perfect in my upper . Feels smoother then my original BCG . Paired with the hammer I'm very i pressed im not positive but the trigger pull seem lighter but for sure it has a nice crisp cleaner brake then the old hammer. Well worth the money"