The AR15 BCG Chrome-Lined Manganese Phosphate is a crucial component of any AR15 rifle. This high-quality bolt carrier group is designed for durability and reliability, making it an excellent choice for both casual shooters and professional operators. The chrome-lined feature provides increased resistance to corrosion, while the manganese phosphate coating enhances lubrication and reduces wear on the moving parts. This BCG ensures smooth operation and consistent performance, making it a must-have for anyone looking to optimize their AR15. Invest in this top-notch Bolt Carrier Group today and experience enhanced reliability and longevity for your firearm.