Primary Weapons Systems MK111 MOD 2-M Complete AR-15 Upper Receiver - .223 Wylde - 11.85"

The Primary Weapons Systems MK111 MOD 2-M Complete AR-15 Upper Receiver in .223 Wylde pairs PWS's long-stroke piston system with an ambidextrous receiver and PicLok handguard on a 11.85" barrel.

Features:

• 11.85" barrel, 1:8 twist, sub-MOA accuracy guarantee
• .223 Wylde chamber, accepts .223 Remington and 5.56mm NATO
• PWS long-stroke piston operating system, 3-setting adjustable gas block
• Ambidextrous forged 7075-T651 aluminum upper receiver, no forward assist
• PicLok handguard, combined Picatinny and M-LOK mounting
• PWS FRC 2-Port Compensator, Rearden Atlas suppressor compatible
• Radian Raptor ambidextrous charging handle
• Weighs approximately 4 lbs

The MOD 2-M's ambidextrous receiver drops the forward assist for a cleaner profile while keeping mil-spec-compatible fitment, and the 3-setting adjustable gas block gives you straightforward suppressor tuning without extra tools or hardware. PWS backs this Boise-made barrel with a sub-MOA accuracy guarantee, and the PicLok handguard blends Picatinny rail sections with a slim M-LOK profile for a comfortable support-hand grip.

Because this 11.85" barrel measures under 16", this complete upper is intended only for an AR pistol or a legally registered short-barreled rifle — attaching it to a standard rifle lower without the correct configuration violates federal law.

Primary Weapons Systems is a U.S.-based manufacturer known for its long-stroke piston AR-15 and AR-10 platforms, backed by the PWS VOW warranty covering repair or replacement for manufacturing defects, and precision manufactured in Boise, Idaho.