Introducing the PWS MK1 MOD 2-M series, boasting the renowned PWS long-stroke piston system for unparalleled reliability. While maintaining the core integrity of other PWS lines, the MK1 MOD 2-M offers a suite of exclusive features tailored to elevate your shooting experience.

The PWS MK1 AR-15 rifles are available in a variety of configurations and calibers. Find a Mod 1 or Mod 2 long stroke gas rifle for sale here, at Omaha Outdoors.

Experience shooting versatility with the PWS MK1 MOD 2-M Multi-Caliber Lower Receiver. Crafted from robust 7075-T651 Forged Aluminum and finished with Mil 8625 Type lll Class 2 hard coat anodize, this lower empowers shooters to customize their rifle with ease.

Built with the internal system PWS owners know and love, the Mod 1-M series is a go to for civilians and Law Enforcement. Fully forged upper and lower receivers make the MK1 MOD 1 a no-nonsense firearm when you a need high value option that is relentless and unstoppable.

PWS is the designer and manufacturer of the MK1 and MK2 series piston-driven rifles, a complete line of muzzle and rimfire biathlon-style sporting rifles.

Primary Weapons Systems (PWS) MK1 Mod 1-M/Pro AR-15 Complete 223 Remington/5.56 NATO Lower Receiver $

Lower Receiver: PWS ambidextrous MK1 MOD 2-M Multi-Caliber Lower, T6 7075 Forged, Anodized, AR-15 Compatible Trigger: Mil-Spec Enhanced, PTFE Coated. Trigger Pull Weight: 5.5 – 6.5 lbs.

Featuring a free-float M-LOK handguard, forward assist controls, fully forged PWS MK109 upper and lower receivers, and a mil-spec design, the MK1 MOD 1-M or 2-M rifle is a functional masterpiece that looks as phenomenal as it performs.

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