LANTAC AR-15 6mm ARC Bolt Assembly Black. . Formulated using some of the most sturdy and long lasting substances available these Bolt Carrier Groups via LANTAC can provide something that will give you numerous years of dependability. LANTAC has been making superior quality products for a number of years and the LANTAC AR-15 6mm ARC Bolt Assembly is their means of demonstrating just how much they are concerned. At OpticsPlanet we ensure that it is our obligation to purchase the perfect solution for your needs and presenting the LANTAC AR-15 6mm ARC Bolt Assembly is one thing that we're pleased to offer. Specifications for LANTAC AR-15 6mm ARC Bolt Assembly: Manufacturer: LANTAC Color: Black Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Features of LANTAC AR-15 6mm ARC Bolt Assembly Replacement MPI Carpenter 158 or 9310 Bolt Assembly Hard Ground Critical Diameters S110 Shot Peened Heat Treated 15N 89-90.5 Hardness Magnetic Particle Inspected Complete Assembly Package Contents: LANTAC AR-15 6mm ARC Bolt Assembly What firearm models does the manufacturer say LANTAC AR-15 6mm ARC Bolt Assembly is compatible with? The manufacturer says that LANTAC AR-15 6mm ARC Bolt Assembly is compatible with AR-15LANTAC 01-UP-6ARC-NIT-BA: AR-15 6mm ARC Bolt Assembly Black