Primary Weapons Systems MK116 MOD 2-M 16 Inch Complete 5.56 NATO AR-15 Upper Receiver (DISCONTINUED)

Long Stroke Piston Upper with Lightweight PicLok Handguard The PWS MK116 MOD 2-M features the PWS Mid-length long-stroke piston system, and includes a unique PicLok handguard, combining Picatinny and M-LOK attachments. Under the hood, this is the same adjustable long-stroke system that combines Kalashnikov reliability with AR-15 agility and modularity. The upper and handguard are [...]