Primary Weapons Systems MK116 MOD 1-M 16 Inch Complete Assembled .223 Wylde AR-15 Upper Receiver (DISCONTINUED)

Combines Agility & Reliability For A Sleek, Efficient Piston Driven Upper Assembly The PWS MK116 MOD 1-M features the PWS Mid-length long-stroke piston system that combines the agility of the AR-15, with the reliability of the AK-47 into a sleek and efficient design. This complete upper receiver is operated with a 7075 T6 forged upper [...]