Daniel Defense MK18 RIII SBR

Daniel Defense MK18 RIII

AUTHORIZED DISTRIBUTOR FOR DANIEL DEFENSE GOVERNMENT & MILITARY SALES

PAI Defense supplies premier tactical systems for military units, law enforcement agencies, and institutional clients. The Daniel Defense MK18 RIII represents the modern evolution of the legendary daniel defense mk18 platform, engineered around an ultra-compact 10.3-inch barrel and an advanced RIS III M-LOK handguard. Trusted globally by specialized CQB and entry teams, the daniel defense mk18 sbr architecture delivers exceptional maneuverability in tight urban environments without compromising terminal ballistics.

Procurement Strategy: This restricted tactical system is reserved for professional agency acquisition and authorized government transfer. Please reach out to us to ask for a quote or submit a request for proposal (RFP).
Institutional Notice: *Please Note Special Finishes and Custom Options Such as Select Fire Available Upon Request.

Description

Manufacturer	Daniel Defense
Caliber	5.56x45mm NATO
Operating Principle	Direct Impingement Carbine System (Optimized Porting)
Barrel Length	10.3″ Government Profile, Chrome Moly Vanadium Steel, Chrome-Lined
Rail Interface	RIS III 9.5″ M-LOK Free-Floating Rail with Full Picatinny Top Rail
Requirement Note	Restricted Law Enforcement / Military Agency Purchase Only

Unmatched CQB Maneuverability with RIS III M-LOK Upgrades

The MK18 RIII combines the time-tested performance of the short-barreled MK18 upper receiver group with an updated, fully ambidextrous lower receiver and a rigid M-LOK rail system. This configuration reduces overall weight and enhances accessory integration for professional operators navigating confined vehicle interiors or complex structural entries.

Core Engineering & Tactical Advantages

10.3-Inch Cold Hammer-Forged Barrel: Engineered with precise chrome lining and a 1:7 twist rate to ensure optimal stabilization and projectile velocity in short-barrel formats.
Ambidextrous Lower Receiver: Integrates fully mirrored bolt catches, safety selectors, and magazine releases for rapid reaction across diverse operational postures.
RIS III M-LOK Handguard: Provides superior heat dissipation and rock-solid mounting platforms for lasers, illuminators, and reflex sights without zero shift.