Brand: Geissele
Model/Series: Super Duty MOD1
Caliber: 5.56 NATO
Barrel Length: 10.3"
Barrel Description: CHF, Chrome Lined
Twist Rate: 1:7
Finish: DDC
Gas System Length: Carbine

Features

The Geissele Super Duty MOD1 5.56 NATO 10.3" 1:7" CHF Chrome Lined Bbl DDC Complete Upper Receiver Group 08-543S is a high-quality upper receiver assembly for AR-15 style rifles. It features a 10.3-inch Cold Hammer Forged (CHF) chrome-lined barrel with a 1:7" twist rate, which is optimal for stabilizing a wide range of bullet weights commonly used in 5.56mm NATO ammunition. The Geissele 08-543S upper receiver group is finished in DDC (Desert Dirt Color), providing durability and resistance to corrosion. Geissele is known for producing precision-engineered firearm components, and this upper receiver group is designed to meet the demanding standards of military and law enforcement users as well as civilian enthusiasts.

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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.