The PWS long stroke piston system stands out for its exceptional reliability, ensuring dependable operation in various conditions
Forward assist integration is essential for reliable chambering, especially in adverse conditions, ensuring smooth operation and increased reliability
Enhancing the suppressor's performance reduces both back pressure and gas blowback, ensuring a more pleasant and effective shooting session
The .223 Wylde chambering accommodates both .223 Remington and 5.56x45mm cartridges, offering versatile functionality and seamless compatibility
Crafted from 7075-T651 aluminum, the fully forged receiver meets Mil-Spec standards, offering exceptional durability
The free-float M-LOK handguard enhances handling and provides versatile accessory mounting options
The Radian Raptor ambidextrous charging handle provides effortless operation for both left and right handed shooters

Features

The MK114 Mod 1-M upper features the esteemed PWS long stroke piston system, renowned for its reliability and trusted by PWS owners. This model includes a free-float M-LOK handguard, forward assist controls and adheres closely to Mil-Spec standards, making it suitable for both civilian and Law Enforcement applications. Constructed from a fully forged upper receiver, the MK114 Mod 1-M offers a straightforward yet high-value solution, ensuring unwavering performance in any operational scenario.

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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.