Winter Garden, Fla. (November 2021) – Andro Corp., a Florida-based designer and manufacturer of quality AR platforms, uppers, lowers, and AR parts, announce the popular ACI gold polished titanium nitride hard coat BCG for AR15/M16’s is back in stock.

The gold polish adds more to the ACI BCG than just gun bling; it actually lengthens the life of the TiN nitride BCG by providing additional lubricity while combating friction. ACI’s full auto-profiled AR15/M16 TiN BCG is machined from 8620 alloy, heat-treated, and ultrasonically cleaned. The hard chrome bore is Physical Vapor Deposition (PVD) coated gold and polished. The PVD coating is a technique by which a solid material is converted into a vapor to coat the subject product. This PVD process condenses the material into a vapor and turns it into a very thin, solid coating covering the piece. The benefits of PVD coating include better resistance to environmental conditions such as corrosion and abrasion and will not wear off or fade out. ACI’s gold-polished BCG is meant to accept the punishment of continuous use in any environment while maintaining optimal performance.

Additionally, the 9310 alloy bolt, machined 4140 Tool steel alloy extractor, 4130 chromoly steel alloy gas key, and 4340 chromoly steel alloy camp pin are all PVD coated and polished for additional lubricity and corrosion resistance.

ACI’s AR15/M16 TiN Gold Polished BCG is HP proof tested without evidence of failure 100 percent by using a high-pressure M197 or SAAMI commercial equivalent. MPI testing occurs after the successful HP proof test, using the ASTM E1444 inspection standard five-turn magnetizing coil.

ACI’s AR15/M16 TiN nitride BCG is 100 percent made in the USA and fully backed by ACI’s Lifetime Warranty. Available through Optics Planet with an MSRP of $199.00 (on sale). Dealers/Distributors interested in carrying Andro Corp. Industries products, contact for more information.

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