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Swiss Schmidt-Rubin Straight-Pull Rifle Database

The Daniel Defense DD5 in 12.5" short-barrel configuration is the most compact and maneuverable variant of Daniel Defense's premium AR-10 platform. Chambered in 7.62x51mm NATO / .308 Winchester, it packs full .308 terminal power into an ultra-manageable envelope — only 772 to 854 mm overall — engineered for demanding tactical contexts where footprint matters.

Built at Daniel Defense's Black Creek, Georgia facility, this short AR-10 carries every DD5 innovation: proprietary 4-Bolt Connection System (no barrel nut), user-adjustable gas block optimized for suppressed and unsuppressed use, superfinished DLC-coated BCG, and fully ambidextrous controls. A premium tactical foundation purpose-built for dynamic shooting and as a native .308 suppressor host.

• Caliber: 7.62x51mm NATO / .308 Winchester
• Action: Semi-automatic, direct impingement
• Barrel: 12.5" (318 mm), Cold Hammer Forged, S2W heavy profile, Daniel Defense proprietary steel, chrome lined, Mil-Spec heavy phosphate coated
• Twist rate: 1:10"
• Gas system: Mid-length
• Gas block: User-adjustable for suppressed / unsuppressed shooting, 4140 hardened steel, heavy phosphate coated
• Muzzle device: Daniel Defense Linear Compensator, 17-4 PH stainless steel, salt bath nitride finish
• Muzzle thread: 5/8x24 TPI
• Handguard: DD5 Rail 10.5 M-LOK, 6061-T6 aluminum, Type III Hard Coat Anodized, free-float, proprietary 4/6-bolt attachment
• Handstop: Daniel Defense M-LOK Handstop, anodized aluminum (included)
• Upper & lower receivers: CNC machined 7075-T6 aluminum, Type III Hard Coat Anodized, flared magazine well, rear QD swivel attachment point
• Barrel-to-receiver: 4-Bolt Connection System (no barrel nut)
• BCG: Superfinished and DLC coated, built-in carrier buffer, dual ejectors, enhanced extractor geometry
• Charging handle: GRIP-N-RIP independently ambidextrous with anti-gas features
• Safety: Ambidextrous
• Trigger: Daniel Defense Mil-Spec
• Buttstock: Daniel Defense Buttstock, glass-filled polymer, Soft Touch Overmolding, non-slip cheek weld, interchangeable butt pads, integral QD point
• Pistol grip: Daniel Defense Pistol Grip, glass-filled polymer, Soft Touch Overmolding
• Receiver extension: Mil-Spec 7075-T6 aluminum, 6-position
• Magazine compatibility: SR-25 pattern (⚠️ AR-15 / STANAG magazines NOT compatible)
• Magazine included: Magpul PMAG 20 SR/LR
• Overall length: 772 – 854 mm (30.38" – 33.63", with muzzle device)
• Weight: 3.72 kg (8.2 lb) unloaded
• Finish: Black (Type III anodize + heavy phosphate)
• Made in USA — Black Creek, Georgia

• Ultra-compact .308 platform: 772 mm stock collapsed — the handling of a 5.56 carbine with the terminal energy of 7.62 NATO.
• Suppressor-ready adjustable gas block: optimized cycling suppressed or unsuppressed — the short 12.5" barrel is designed as a native .308 suppressor host.
• 4-Bolt Connection System: unmatched barrel-to-receiver rigidity on an AR-10, consistent accuracy despite the short barrel.
• Superfinished DLC BCG: permanent lubricity, easier cleaning, extreme reliability in harsh conditions.
• Fully ambidextrous controls: safety, GRIP-N-RIP charging handle, flared magazine well — instant strong-hand / support-hand transitions.
• Linear Compensator: redirects blast forward, reduces lateral signature typical of short-barreled rifles — friendlier range experience for adjacent shooters.
• M-LOK Handstop included: secure support-hand indexing and controlled distance from the muzzle.

• Dynamic / CQB shooting: short-barreled .308 excels in close stages, multi-target engagements, indoor ranges rated accordingly.
• Tactical / patrol rifle: compact platform with major-caliber terminal energy for equipped professionals.
• .308 suppressor host: the adjustable gas block and short barrel make this a benchmark base for a coherent compact rifle + suppressor package.
• Short semi-auto sport shooting: dynamic disciplines where maneuverability trumps maximum range.
• Collection: rare and premium AR-10 configuration, Daniel Defense reference build.

• 1 Daniel Defense DD5 12.5" 7.62 NATO rifle
• 1 Magpul PMAG 20 SR/LR magazine
• 1 Daniel Defense M-LOK Handstop
• 1 Daniel Defense Full-Latch Impact Plastic Case
• Owner's manual, manufacturer warranty card