The MK1 MOD 1-M line, reengineered for 2018, delivers exceptional performance with the proven PWS long-stroke piston system. Built to exceed expectations, this rifle maintains the reliable internals that PWS owners trust while incorporating modern enhancements for superior functionality. A free-float MLOK handguard provides versatility for accessory mounting, while forward assist controls and a design that aligns closely with mil-spec standards ensure seamless operation. Engineered for both civilians and law enforcement, the MK1 MOD 1-M features fully forged upper and lower receivers, creating a durable and battle-ready platform. Designed to be relentless in any environment, this rifle offers an unbeatable combination of value, performance, and dependability.

PWS long stroke piston system, 3-setting adjustable gas regulator, allowing for fine-tuned adjustments to suit different ammunition types and performance needs
The firearm is chambered in .223 Wylde, offering compatibility with both .223 Remington and 5.56 x 45mm cartridges
The barrel length is 11.85 inches, providing a compact and maneuverable option for tactical setups
The carbine-length gas system provides balanced gas flow for reliable cycling and improved accuracy, making it ideal for carbine-length barrels
The barrel twist rate is 1:18, suitable for shooting lightweight bullets with greater precision
Muzzle velocity 2741 fps, offering enhanced range and kinetic energy for accuracy
Muzzle device PWS Triad 556, a versatile device designed for performance and recoil mitigation
The PWS proprietary piston upper receiver is forged from T6 7075 aluminum and anodized for superior strength
The PWS M-LOK 11.05 inches handguard features a 1.7 inches width and 2-1/4 inches height, providing a strong, lightweight rail system ideal for building a custom setup with M-LOK compatible accessories
The Radian Raptor ambidextrous charging handle provides smooth, reliable operation for both right and left handed users

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.