AR-15 Tuning

DuraCoat unique coating.

DuraCoat Firearms Finishing System which is the very latest in firearm finishing technology. No other commercially manufactured and packaged firearm finishing system offers the versatility, durability and user friendly characteristics of DuraCoat. DuraCoat is extremely easy to apply. Anyone can do it. DuraCoat was designed for the average gun owner. Preheating, baking and blasting are not required. Expensive, space consuming equipment is not needed. Simply clean and degrease the surface prior to application. DuraCoat is permanent, and provides a professional finish.



Bolt carrier group chrome plating.

Hard chrome, also known as industrial chrome or engineered chrome, is used to reduce friction, improve durability through abrasion tolerance and wear resistance in general, minimize galling or seizing of parts, expand chemical inertness to include a broader set of conditions (especially oxidation resistance, arguably its most famous quality), and bulking material for worn parts to restore their original dimensions. It is very hard, measuring between 65 and 69 HRC (also based on the base metal's hardness). Hard chrome tends to be thicker than decorative chrome, with standard thicknesses in nonsalvage applications ranging from 0.02 to 0.04 mm (20 to 40 μm), but it can be an order of magnitude thicker for extreme wear resistance requirements, in such cases .1 mm (100 μm) or thicker provides optimal results. Unfortunately, such thicknesses emphasize the limitations of the process, which are overcome by plating extra thickness then grinding down and lapping to meet requirements or to improve the overall aesthetics of the "chromed" piece. Increasing plating thickness amplifies surface defects and roughness in proportional severity, because hard chrome does not have a leveling effect. Pieces that are not ideally shaped in reference to electric field geometries (nearly every piece sent in for plating, except spheres and egg shaped objects) require even thicker plating to compensate for non-uniform deposition, and much of it is wasted when grinding the piece back to desired dimensions.



AR-15 Complex Service.