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Quick Look

The Daniel Defense MK18 is a carbine-length variant of the M4 platform developed for close quarters combat, introduced in 2011. It emphasizes maneuverability and rugged reliability. The MK18 remains a favored choice among military units and tactical shooters for urban and short-range operations.

Why It's a Top Choice

Compact 10.3-inch barrel optimized for CQB
Monolithic upper receiver enhances durability
Free-floating handguard supports accessory mounting
Reliable and battle-tested design
Certified by military and law enforcement agencies

Key Variants

MK18 Mod 0

Original variant used by USSOCOM featuring Daniel Defense rails and Geissele trigger for tactical missions.

MK18 Mod 1

Updated model with improved handguard and barrel enhancements for enhanced precision and ergonomics.

Competitor Comparison Table

Feature	Daniel Defense Mk18	Sopmod M4	Fn Scar
MSRP	$2,200+	$2,400+	$3,000+
Capacity/Size	10.3" barrel, 30 rounds	14.5" barrel, 30 rounds	16.25" barrel, 20 rounds
Weight	6.5 lbs (empty)	7.9 lbs (empty)	7.9 lbs (empty)
Optics-Ready	Yes, monolithic upper	Yes, flat top rail	Yes, integrated rail
Trigger Type	Geissele SSA	Standard mil-spec	Two-stage
Notable Pro	Lightweight, CQB optimized	Proven in military service	Versatile and modular
Notable Con	Higher MSRP than typical carbines	Heavier than comparable models	More complex maintenance

Best Use Cases

Close quarters battle (CQB) and urban defense
Military and law enforcement tactical operations
Home defense with compact handling
Range training and marksmanship
Special operations requiring lightweight carbines

FAQs

Can I use standard AR-15 magazines with the Daniel Defense MK18?

Yes, the MK18 is compatible with standard AR-15 magazines in 5.56 NATO caliber, allowing easy magazine interchangeability.

What is the barrel length of the Daniel Defense MK18?

The MK18 features a 10.3-inch barrel, optimized for maneuverability in close quarters.

How does the monolithic upper benefit the MK18?

The monolithic upper receiver improves rigidity and accuracy while providing a continuous rail for mounting optics and accessories.

DANIEL DEFENSE MK18 for Sale