LBE READY BUILD KIT 12.5 CHF BBL. 5 CHF BBL - Specifications for LBE AR125RBK READY BUILD KIT 12.5 CHF BBL: Manufacturer: LBE Unlimited Caliber: 5.56x45mm NATO Color: Black Gun Model: AR-15 Gun Type: Semi-Automatic Rifle Gun Make: AR Platform Length: 12.5 in LBE AR125RBK READY BUILD KIT 12.5 CHF BBL What firearm models does the manufacturer say LBE AR125RBK READY BUILD KIT 12.5 CHF BBL is compatible with? The manufacturer says that LBE AR125RBK READY BUILD KIT 12.5 CHF BBL is compatible with AR-15