C4V (TiN) provides excellent wear resistance with a hardness of 2600 Vickers. C4V is a (PVD) coating (TiN), however one look at C4V and you will know this is not your average TiN. It has a coefficient of friction 0.4 and only 2 microns thick making it a major improvement over MilSpec. Our Enhanced Bolt made of Carpenter 158 is coated to match.
*Iron City Rifle Works HIGHLY recommends using an adjustable gas system and the TACCOM reduced recoil buffer and spring for best results.
We are so confident that you will be 100% satisfied with this product that we have backed your purchase with our 30 day money back guarantee. Made in USA