The upper receiver is Mil-Spec with indexing marks and M4 feed ramps, CNC machined from 7075-T6 aluminum, and type III hard coat anodized for durability
The barrel is made from chrome-moly vanadium steel, cold hammer forged, with a 1:7 inches twist rate, 14.5 inches M4 profile, chrome-lined, Mil-Spec heavy phosphate-coated, and HP/MPI tested
The gas system features a Mil-Spec F-marked front sight base, carbine-length, and direct impingement for reliable operation
The muzzle device is a SureFire SF3P flash hider/suppressor adapter, precision-machined from US mill-certified heat-treated stainless steel bar stock and pinned and welded to the barrel
The bolt carrier group is an M16 profile, Mil-Spec MP tested, chrome-lined, and properly staked gas key for consistent performance
The A1.5 fixed rear sight is constructed from durable 6061-T6 aluminum and features a type III hard coat anodized finish for long-lasting performance
The Daniel Defense M4A1 FSP rail interface system (RIS) II handguard is CNC machined from 6061-T6 aluminum and finished in type III hard coat anodized FDE for superior durability
Proudly made in the USA, ensuring high standards of craftsmanship and quality

Features

The Daniel Defense M4A1 FSP AR15 upper receiver group is tailored for customers seeking a firearm inspired by the USSOCOM SOPMOD Block II. This upper includes the M4A1 FSP RIS II picatinny quad rail in Flat Dark Earth, paired with a 14.5 inches M4 profile barrel. It features a Mil-Spec F-Marked front sight base, a Surefire SF3P flash hider / suppressor adapter and an A1.5 Fixed Rear Sight. The M16 profile full-auto bolt carrier group ensures reliability, while a rail-mounted QD Swivel Attachment Point with QD swivel provides versatile sling options.

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.