Primary Weapons Systems MK116 MOD1 AR-15 Complete Upper .223 Wylde - 16"

For those looking to build a rifle that is different from your standard AR-15 platform, Primary Weapon Systems has you covered. The Primary Weapon Systems MK116 MOD1 Upper .223 Wylde AR - 16" features a 3-position adjustable long stroke gas piston system for the ultimate in reliability and smooth function. The gas block adjustment switch is easily accessible through the PWS M-LOK handguard, so you can quickly add picatinny rails or M-LOK accessories. The barrel is machined from 416R stainless steel and features a .223 Wylde chamber for extreme accuracy potential. Additionally, the 16” barrel is button rifled with a 1:8 twist rate and has the uniquely popular PWS FSC 556 compensator. 

Features:

• 3 Position adjustable long stroke gas piston
• Mid-Length piston system
• 16” barrel chambered in .223 Wylde
• 416R stainless steel and Nitride finished
• PWS FSC 556 compensator
• Button rifled 1:8 twist rate
• Forged anodized T6 7075 aluminum receiver
• Radian Raptor charging handle
• 15" M-LOK free float handguard