Description

Daniel Defense Mark 12 SPR 18″ Upper Assembly

Precision Proven • Professional Performance • Legendary Reliability

The Daniel Defense Mark 12 SPR 18″ Upper is built to exacting standards for shooters who demand precision and reliability in long-range engagements. Inspired by the Special Purpose Rifle (SPR) platform, this upper assembly pairs an 18″ stainless barrel with Daniel Defense’s premium engineering—giving you match-capable accuracy with the versatility to suit duty, competition, and precision builds.

Key Features

• 18″ Match-Grade Barrel – Cold hammer-forged, stainless steel barrel with a 1:7″ twist delivers consistent accuracy and optimal performance with a wide range of bullet weights.

• Iconic SPR Profile – Designed for minimal barrel whip and consistent harmonics, this profile enhances precision while maintaining strength and durability.

• High-Quality Handguard – Free-float rail with abundant attachment real estate provides a stable platform for optics, bipods, lights, and accessories without affecting barrel harmonics.

• Mil-Spec Compatibility – Built to standard AR-15/M4 interface specs for seamless integration with mil-spec lowers, BCGs, and charging handles.

• Rugged Construction – Precision-machined from aircraft-grade materials and finished for long-lasting performance in demanding environments.

• Optics Ready – Upper receiver maintains a flat-top rail for secure mounting of optics, scopes, and backup sights.

Specifications

Why You’ll Love It

The Daniel Defense Mark 12 SPR 18″ Upper is more than an upper assembly—it’s a precision-minded component that elevates your build to professional standards. From competitive shooters to tactical marksmen and serious enthusiasts, this upper delivers smooth cycling, consistent shot placement, and long-term durability. Whether paired with a quality optic or iron sights, it’s ready for precision work out to extended distances.