The RISE 6mm ARC AR-15 Upper Receiver is designed to deliver outstanding precision, featuring an 18 inches 416R stainless steel threaded barrel known for its exceptional accuracy. This high-performance barrel ensures tight, consistent groupings, making it perfect for shooters who demand pinpoint precision in both tactical and competitive settings. Crafted from durable 416R stainless steel, it offers superior resistance to wear and corrosion, ensuring long-lasting reliability. Whether you're looking to enhance your shooting experience at the range or tackle challenging field conditions, the RISE 6mm ARC Upper Receiver delivers the performance and durability needed to take your AR-15 to the next level.

The 18 inches 416R stainless steel barrel is button rifled, air-gauged and tested for superior precision, with a threaded muzzle for attachment options
The free-floating skeletonized aluminum handguard features a continuous 12 o'clock picatinny rail, M-LOK slots, (4) threaded steel sling swivel QD inserts, a snag-free front and a patent-pending attachment lock to maintain zero
The RISE ambidextrous charging handle enhances ease of use for both right and left handed users, even with optics and gloves
The premium Bolt Carrier Group features a 9310 bolt, individually MPI tested, a staked gas key and a durable black nitride finish for enhanced reliability
Receiver forged billet aluminum, offering strength, durability and precision machining for a solid firearm receiver
The product is backed by RISE's lifetime warranty and more-bang-for-your-buck guarantee, ensuring long term value and satisfaction

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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.

Rise Armament 18" Upper 6mm ARC 1:7 M-LOK Picatinny Rail Aluminum Rifle-Length, Patriot Brown