Daniel Defense SPRIII 18"

Daniel Defense SPRIII 18" is a refined long-range precision rifle that builds on the MK12 legacy with updated modern control and mounting features. The rifle is set up for consistent accuracy and smooth cycling, making it well suited for precision shooting with a stable, adjustable feel. Its RIS III rail with integrated ARCALOCK section supports extended bipod and accessory placement for practical field or range setups. Fully ambidextrous controls round out the package, supporting confident handling from either side.

• Precision-focused rifle built around the MK12-style 18" barrel and modern upgrades
• 5.56mm NATO chambering for widely available performance-focused ammunition compatibility
• Rifle-length gas system tuned for smoother recoil impulse and consistent cycling
• RIS III rail system with full length ARCALOCK bottom panel for extended bipod and accessory mounting options
• M-LOK mounting system for flexible attachment of compatible accessories
• Geissele Super Semi-Automatic (SSA) trigger for crisp, repeatable match-style trigger control
• Magpul PRS Lite stock for adjustable support and steadier shooting positions
• Fully ambidextrous lower with ambidextrous safety selector, charging handle, magazine release and bolt release
• Includes DD Flash Suppressor muzzle device and ships with a Daniel Defense Full-Latch Impact Plastic Case
• Comes with a DD Magazine with 32-round capacity

Technical Features
Mounting system: M-LOK
Caliber: 5.56mm NATO
Muzzle thread: 1/2 × 28 TPI (Threads Per Inch)
Gas system: Rifle
Barrel length: 18"
Barrel profile: MK12
Muzzle device: DD Flash Suppressor
Rail system: RIS III w/ full length ARCALOCK bottom panel
Magazine: DD Magazine (32 Round)
Case: Daniel Defense Full-Latch Impact Plastic Case
Manufacturer: Daniel Defense

Weight
3,901 kg (8.6 lbs)

Dimensions
Length: 88,3–96,2 cm (34 3/4" – 37 7/8” w/ muzzle device)