Bravo Company MFG (BCM) MK2 AR-15 5.56 NATO Complete Upper Receiver Group - 18"

About the BCMA(R) MK2 SS410 18" Rifle Complete Upper Receiver w/ MCMR-15 Handguard 1/8 Twist All BCMA(R) Upper Receiver Groups with a MCMR Handguard Include: One 3" Picatinny Rail Section One BCM MCMR Sling Mount Manufactured by Bravo Company MFG, Inc. (BCM) These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired. As a note: Prior to shipping, all BCM upper receiver groups are test fired for function, laser bore sighted with a Milspec carry handle for sight alignment within Mil-Specs, and then batch samples are test fired for accuracy. As such, the upper receiver group will show handling marks consistent with these quality control procedures. Featuring BCM's Patented MK2 Upper Receiver This proprietary design offers enhanced rigidity over the USGI product. The increased rigidity limits barrel deflection which aids in consistency/accurac