The LMT Monolithic Rail Platform (MRP) upper receiver is a groundbreaking innovation in firearm technology, designed for precision and durability. Crafted from a single-piece of aerospace-grade aluminum, this patented receiver and handguard combination offers unparalleled strength and stability. The unique design features a proprietary locking system that secures the barrel with two accessible locking bolts on the right-side, requiring only a standard T-30 Torx bit for installation and adjustment, ensuring ease of use and reliability in the field. This advanced receiver is compatible exclusively with the patented LMT monolithic barrel assembly, which includes a low-profile gas block and a straight gas tube for optimal performance. The MRP-L M-LOK model, measuring 13-1/4 inches, is specifically engineered for rifle length applications, accommodating barrel lengths from 14-1/2 inches - 20 inches. It boasts M-LOK compatible attachment points on all eight sides, providing versatile options for accessory bipoding and customization. Additionally, the receiver is equipped with four QD sling swivel attachment locations, enhancing its adaptability for various tactical scenarios. Please note that the barrel is not included with the receiver, allowing users to select the barrel that best suits their specific needs. The LMT MRP upper receiver represents the pinnacle of modern firearm engineering, offering a robust and flexible platform for discerning shooters.

Report incorrect product description

Reviews

Q & A

Retail Stock

Compliance

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.

LMT Defense MRP-L M-LOK Railed Upper 5.56x45mm/.300 AAC Blackout/6.8 SPC no BCG&CH, Black