Daniel Defense MK18 SBR 5.56 NATO 10.3" Barrel - Black

Daniel Defense MK18 SBR 5.56 NATO 10.3" Barrel - Black

The Daniel Defense MK18 10.3" 5.56 SBR is built for shooters who demand uncompromising performance in the most compact, battle‑proven configuration available. Designed around the same components supplied to USSOCOM, the MK18 delivers exceptional reliability, durability, and handling—making it one of the most trusted CQB platforms in the world.

USSOCOM‑Proven RIS II Rail
Quad‑rail handguard with Bolt‑Up System for unmatched strength and accessory mounting.

10.3" Cold Hammer Forged Barrel
Chrome‑lined, phosphate‑coated, and HP/MPI tested for maximum durability and accuracy.

Ambidextrous GRIP‑N‑RIP Charging Handle
Smooth, reliable operation for both left‑ and right‑handed shooters.

Mil‑Spec 7075‑T6 Receivers
CNC‑machined upper and lower with Type III hardcoat anodizing for superior strength.

Premium Daniel Defense Furniture
Soft‑touch buttstock and pistol grip for enhanced comfort and control.

Pinned Low‑Profile Gas Block
4140 hardened steel construction ensures consistent cycling and long‑term reliability.

M16‑Profile BCG
Chrome‑lined, MP tested, and properly staked for dependable performance.

Made in the USA
Built to the highest standards of American manufacturing.

Specifications

• Caliber: 5.56mm NATO
• Barrel Length: 10.3"
• Barrel Profile: Government
• Barrel Material: Chrome Moly Vanadium steel
• Twist Rate: 1:7
• Gas System: Carbine length, direct impingement
• Gas Block: Pinned low‑profile 4140 steel
• Muzzle Device: Daniel Defense flash suppressor, 17‑4 PH stainless steel
• Upper Receiver: 7075‑T6 aluminum, Type III hardcoat anodized
• Lower Receiver: 7075‑T6 aluminum, flared magwell, QD point
• Handguard: MK18 RIS II, 6061‑T6 aluminum
• Charging Handle: GRIP‑N‑RIP ambidextrous
• Bolt Carrier Group: M16 profile, chrome‑lined, MP tested
• Buffer: H buffer
• Receiver Extension: 6‑position Mil‑Spec 7075‑T6
• Buttstock: Daniel Defense soft‑touch polymer
• Pistol Grip: Daniel Defense soft‑touch polymer
• Rail Ladders: (3) Santoprene, heat‑resistant to 300°F
• Mounting System: Picatinny
• Muzzle Thread: 1/2×28 TPI
• Overall Length: 26.75" – 29.875"
• Weight: 5.88 lbs
• Magazine: DD magazine included