Daniel Defense GL/SSC 12.5" 5.56 NATO AR Upper Receiver Group

Details
SKU	51655231491
Brand	Daniel Defense
MPN	23-004-20154-047
UPC	818773025355

Notify Me When Back in Stock

CA WARNING (Prop 65) & Compliance Information
Please read before purchasing.

Product Details

Reviews

Q & A

Product Details

Details

Brand: Daniel Defense
Model: GL/SSC Upper Receiver Group
Platform: AR-15
Caliber: 5.56 NATO
Barrel Length: 12.5"
Gas System: Carbine-Length / Direct Impingment
Barrel Extension: M4 Extension
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Description: Government Profile / Chrome Lined
Twist Rate: 1:7
Muzzle Thread: 1/2 x 28
Muzzle Device: Flash Hider
Receiver Material: 7075-T6 Aluminum
Receiver Finish: Black Anodized
Handguard: Free-Floating GL/SSC RIS II
Handguard Finish: Dark Brown
Attachment Style: Picatinny / Free-Float Hangar System
Bolt Carrier Group: Yes
Charging Handle: Yes

Features

The Daniel Defense GL/SSC complete upper brings back a proven, battle-ready design built for durability, versatility, and performance. Featuring a 12.5-inch government profile barrel, this configuration balances compact handling with consistent accuracy, while the carbine-length gas system ensures reliable operation. The cold hammer forged barrel is constructed from 4150 chrome moly vanadium steel, chrome-lined for longevity, and finished with a heavy phosphate coating for enhanced wear and corrosion resistance.

Equipped with the iconic RIS II free-float rail system, this upper provides a rigid, battle-proven platform with ample space for optics and accessories without impacting barrel harmonics. Designed for adaptability, the GL/SSC configuration supports suppressor use and is compatible with M203 mounting systems through its free-float hangar design. Built to meet demanding standards, this complete upper offers a refined combination of strength, modularity, and proven performance.

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.

Daniel Defense GL/SSC 12.5" 5.56 NATO AR Upper Receiver Group