The PWS long stroke piston system is known for its reliability and reduced fouling, featuring adjustable gas settings for peak performance
Suppressor optimization enhances performance by minimizing back pressure and gas blowback, creating a cleaner and more comfortable shooting experience
The .223 Wylde chambering is designed for outstanding accuracy and reliability, accommodating both .223 Remington and 5.56x45mm
The muzzle is threaded 1/2-28 for compatibility with compensators, muzzle brakes, and suppressor mounts (devices sold separately)
The innovative PicLok handguard integrates picatinny and M-LOK systems, balancing ergonomic design with functional versatility
The Radian Raptor ambidextrous charging handle ensures smooth operation for both left and right handed shooters

Features

The MK114 Mod 2-M upper utilizes the renowned PWS long stroke piston system, celebrated for its reliability and minimal fouling. Featuring a 3-setting adjustable gas system, it empowers users to fine-tune gas flow, optimizing performance across different shooting conditions and accommodating suppressor use. This innovative setup not only enhances reliability but also offers versatility for different ammunition types and environmental challenges. Ideal for shooters seeking reliable performance and adaptability in their firearms.

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Shipping Restrictions

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.