Centurion Arms MK11 Billet AR10 Upper Receiver Made to exacting standards for proper fit, function and reliable use for a lifetime. The Centurion Arms MK11 Billet Upper Receiver is a great starting point for your next AR-10 upper. Compatible with KAC SR-25 and LMT MWS/MARS-H lower receivers. Machined from a solid block of 7075-T6 aluminum with all sharp edges have been de-burred by hand. Features DPMS/SR-25 Profile Machined from 7075-T6 aluminum Type III Class 2 hardcoat anodized black Compatible with Mil-Spec parts Fully de-burred Dimensional accuracy inspected Multi-caliber Made in the USA
