Brand: LWRC
Model: IC PSD Complete Upper
Platform: AR-15
Caliber: 5.56 NATO
Barrel Length: 8.5"
Barrel Description: Cold-Hammer Forged Barrel
Finish: Black
Gas System: Short Stroke Gas Piston System
Muzzle Device: A2 Birdcage Flash Hider
Receiver Material: Aluminum
Handguard: LWRCI Free-Float Rail
Attachment Style: M-LOK
Bolt Carrier Group: Nickel Boron Coated
Charging Handle: LWRCI Ambidextrous Charging Handle

Features

The LWRC IC-PSD 5.56 NATO complete upper receiver is a premium, compact AR-platform component engineered for durability, reliability, and high-performance operation. Featuring an 8.5-inch cold hammer forged barrel with a 1:7 twist rate and 1/2x28 muzzle threading, it delivers consistent stability across a wide range of ammunition while supporting compatibility with muzzle devices and suppressors. Built on LWRC’s Monoforge upper with a modular rail system and full-length Picatinny top rail, it provides a strong, lightweight platform for optics and accessory integration.

Utilizing a patented short-stroke gas piston system, this upper reduces heat and carbon fouling within the receiver for improved reliability and easier maintenance. A nickel-boron coated bolt carrier enhances smooth cycling and long-term durability, while the ambidextrous charging handle supports intuitive operation. Equipped with backup iron sights and a flash hider, the IC-PSD upper offers a refined, piston-driven solution well-suited for tactical applications, personal defense, or compact rifle builds.

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.