DIAMONDBACK DB1717K005 CARBON DB15 5.56MM 16" MLOK 15" 30 RND

The Diamondback Carbon DB15 (DB1717K005) is a semi-automatic carbine chambered in 5.56 NATO, built for sport shooters, home defenders, and tactical training enthusiasts who want a well-appointed AR-15 platform with a full-length 15-inch M-LOK handguard, a nitride-finished chrome moly barrel, and Magpul furniture straight from the factory. This 5.56 NATO AR-15 carbine delivers a ready-to-run package with a 30-round Gen 3 PMAG included, making it one of the most complete out-of-the-box builds in its price category.

Key Features

• Part number: DB1717K005
• UPC: 810035755406
• Caliber: 5.56x45mm NATO, also accepts .223 Remington
• Action: Semi-automatic, direct impingement gas operation
• Barrel length: 16 inches, medium contour, 4150 Chrome Moly Vanadium, black nitride finish
• Barrel twist rate: 1:8 right-hand
• Rifling: Button rifled, 5-groove
• Muzzle thread: 1/2 x 28
• Muzzle device: A2 flash hider
• Gas system: Carbine-length, pinned gas block
• Bolt carrier group: Shot-peened, magnetic particle inspected, Mil-Spec 8620 carrier
• Upper receiver: A3 flattop, forged 7075-T6 aluminum, T-marked, black hard coat anodized
• Lower receiver: DB-15 Carbon, forged 7075-T6 aluminum, black hard coat anodized
• Handguard: 15-inch M-LOK, aluminum, anti-rotation, with texture pads, full Picatinny top rail, front and rear QD sockets
• Grip: Magpul MOE grip
• Stock: Magpul MOE carbine stock, 6-position adjustable
• Safety: Two-position thumb safety, Mil-Spec
• Trigger: Mil-Spec
• Sights: None, optics ready
• Magazine: Gen 3 Magpul PMAG 30-round, included
• Capacity: 30 plus 1
• Overall length: 32.5 inches collapsed, 35.75 inches extended
• Weight: 6.65 pounds

Special Features

• The 4150 Chrome Moly Vanadium barrel steel adds vanadium to the standard 4150 chrome moly alloy, increasing hardness, toughness, and heat resistance beyond standard mil-spec barrel steel and contributing to a longer service life under sustained fire.
• Black nitride finish on the barrel treats the steel at the molecular level rather than adding an external coating, producing a surface hardness and corrosion resistance that outlasts traditional phosphate and many other applied finishes without adding measurable wall thickness to the bore.
• The 15-inch aluminum M-LOK handguard extends nearly to the muzzle, providing maximum accessory rail space for lights, lasers, bipods, and vertical grips while keeping overall handguard weight lower than a full Picatinny quad-rail design.
• Anti-rotation tabs lock the handguard to the upper receiver barrel nut, eliminating the slight rotational play that appears on some free-float handguards during heavy accessory loads and maintaining a consistent mounting platform for accessories zeroed at the range.
• The shot-peened and magnetic particle inspected bolt carrier group meets Mil-Spec standards for surface treatment and defect detection, giving the shooter confidence that the most stress-critical component in the action has been verified before leaving the factory.
• The Gen 3 Magpul PMAG included with the DB1717K005 is one of the most proven and durable polymer magazines available for the AR-15 platform, with a dust cover, impact-resistant polymer body, and anti-tilt follower that functions reliably across a wide range of conditions.

Practical Benefits

• The 5.56 NATO chamber accepts both 5.56x45mm NATO and .223 Remington ammunition interchangeably, giving you full flexibility to use whatever factory or handloaded ammunition you have on hand without compatibility concerns.
• The 1:8 twist rate stabilizes projectiles from 55-grain standard loads through 77-grain match-grade and heavier hunting bullets, making the DB1717K005 versatile enough for training, competition, home defense, and varmint hunting with a single rifle.
• The 15-inch M-LOK handguard gives you a full-length gripping surface for supported prone and barricade positions, and ample mounting space to build out exactly the accessory configuration you need without a separate rail section purchase.
• The 6-position Magpul MOE stock adjusts length of pull from 10.3 to 12.8 inches, fitting a wide range of shooters and allowing adjustment for body armor, shooting position, and seasonal clothing changes without tools.
• The optics-ready A3 flattop upper accepts any Picatinny-compatible scope base, red dot, magnifier, or night vision mount directly, letting you configure the DB1717K005 for close-range training or extended-range field use with the optic you already own.
• If you are a sport shooter, first-time AR-15 buyer, or tactical training enthusiast who wants a well-built carbine with premium furniture, a verified BCG, and a magazine included at a practical price, the DB15 DB1717K005 is ready to run the day it arrives.

The Diamondback Carbon DB15 DB1717K005 in 5.56 NATO is a capable tool for sport shooters, defensive carbine students, and AR-15 enthusiasts who want a factory-complete, Mil-Spec-built carbine with a full-length M-LOK handguard and Magpul furniture ready for the range or the course of fire.