Daniel Defense SPR III, 5.56 NATO, 18″ Cold Hammer Forged Barrel, Black Anodized Finish, Ambidextrous Controls

Product Description

The Daniel Defense SPR III represents the evolution of the legendary MK12 Special Purpose Rifle platform. This 5.56 NATO rifle ships fully assembled with a factory Geissele SSA two-stage trigger and Magpul PRS Lite stock already installed. Every Daniel Defense firearm is hand assembled, quality assurance tested, and test fired before it ships to you.

The 18-inch stainless MK12-profile barrel and rifle-length gas system deliver the soft recoil impulse and precision accuracy the SPR lineage is known for. Additionally, the RIS III 15.0 handguard features a full-length ARCALOCK bottom rail for direct bipod and bag mounting. The fully ambidextrous lower puts safety, magazine release, and bolt release within reach of either hand.

Furthermore, the 1/2×28 threaded muzzle accepts common 5.56 suppressors and muzzle devices. The adjustable PRS Lite stock lets you dial in length of pull and cheek height for consistent positioning behind magnified optics. This configuration is built for precision shooters who demand match-grade performance out of the box.

Materials & Construction

• Lower Receiver: Daniel Defense Fully Ambidextrous Lower Receiver, Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point, CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
• Upper Receiver: Daniel Defense Upper Receiver, Mil-Spec with Indexing Marks and M4 Feed Ramp Extension, CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
• Barrel: 18″ Cold Hammer Forged, Proprietary Blend of Stainless Steel, 1:7″ Twist, MK12 Profile, DLC Finished, HP/MPI Tested, 1/2×28 Threaded Muzzle
• Gas System: Rifle-Length Direct Impingement with MK12 Low-Profile Gas Block, CNC Machined of Hardened 416 Stainless Steel with Black Oxide Coating
• Muzzle Device: Daniel Defense Flash Suppressor, 1/2×28 Threaded
• Handguard: Daniel Defense RIS III 15.0 with Modular Full-Length ARCALOCK Bottom Rail, Free-Float, M-LOK Attachment Points, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
• Bolt Carrier Group: M16 Profile Bolt Carrier Group, Mil-Spec MP Tested, Chrome Lined, with Properly Staked Gas Key
• Charging Handle: Daniel Defense Ambidextrous Charging Handle
• Trigger: Geissele Super Semi-Automatic (SSA) Two-Stage Trigger
• Buttstock: Magpul PRS Lite Stock, Adjustable Length of Pull and Cheek Riser
• Pistol Grip: Daniel Defense Pistol Grip, Glass-Filled Polymer with Soft-Touch Overmolding

Specifications

Why Buy from Western Sport?

• Western Sport’s knowledgeable staff has hands-on experience with Daniel Defense rifles and can answer platform-specific questions.
• We offer competitive pricing on Daniel Defense SPR III configurations and factory options.
• Our local expertise means faster, personalized service and support for your rifle setup.
• We stand behind every Daniel Defense firearm with professional after-sale guidance on maintenance, accessories, and upgrades.

Frequently Asked Questions

Q: What ammunition does the Daniel Defense SPR III shoot, and what’s the performance difference between 5.56 NATO and .223 Remington?

A: This rifle is chambered in 5.56x45mm NATO, which also safely fires .223 Remington ammunition. NATO spec ammo typically runs slightly hotter and more consistent velocity. Therefore, for precision work, match-grade .223 Remington loads often yield tighter groups at distance.

Q: What optics, lights, and accessory mounts work with the RIS III handguard?

A: The RIS III 15.0 features M-LOK slots for lights, slings, and rail sections across the sides and top. Additionally, the continuous 1913 Picatinny rail on top accepts any standard red dot, scope mount, or night vision bridge. The ARCALOCK bottom rail is dedicated to ARCA-compatible bipods, tripod clamps, and rear bags.

Q: How does the SPR III compare to the Daniel Defense DD4 V7 you also carry?

A: The SPR III uses an 18-inch MK12-profile barrel with rifle-length gas for softer recoil and match-grade precision. In contrast, the DD4 V7 features a 16-inch barrel with mid-length gas for slightly faster handling. Choose the SPR III if you prioritize distance accuracy; choose the DD4 V7 if you prefer a compact, versatile platform.

Q: What comes in the box with the Daniel Defense SPR III, and what do I need to buy separately?

A: The rifle ships with a DD 32-round magazine, a full-latch impact plastic hard case, and the Geissele SSA trigger and Magpul PRS Lite stock already installed. You will need to purchase optics, bipods, and suppressors separately. In stock now—order today and we’ll help you plan your setup.

Q: What is the RIS III rail system on this rifle?

A: The RIS III is Daniel Defense’s next-generation free-float handguard. It uses a patented 6-bolt Bolt-Up System for a more secure, repeatable zero than older quad-rail designs. Furthermore, M-LOK slots run along the rail for mounting lights, lasers, and grips.

Additional information