Enhance your AR-15's performance with the Guntec USA GT-BCG AR-15 Bolt Carrier Group Mil-Spec BCG, featuring a Gloss Rainbow PVD finish. This Mil-Spec BCG combines durability with a stunning aesthetic for a standout upgrade. Engineered for reliability and precision, this bolt carrier group ensures optimal function while adding a unique flair to your firearm. Crafted from high-quality materials, it supports consistent cycling and enhanced longevity. Mil-Spec construction for superior durability Gloss Rainbow PVD coating / Tin COATING (Gold Titanium Nitride Finish) Precision machined for reliable performance Compatible with most AR-15 systems Elevate your shooting experience with a blend of style and function, ensuring your AR-15 stands out on the range.