Knight's Armament MCQ-2 - 5.56mm Inconel Suppressor - FDE

Knight's Armament MCQ-2 - 5.56mm Inconel Suppressor - FDE

Engineered for tactical precision, extreme durability, and minimal signature giveaway, the Knight's Armament Company (KAC) 5.56 MCQ-2 Quick Detach Suppressor (PN: 122777) in FDE delivers professional-grade performance in an ultra-compact CQB footprint. Designed specifically to overcome the physical and operational limitations of traditional suppressors on short-barreled rifles (SBRs), the MCQ-2 adds just 3.9 inches of overall length to the host weapon's muzzle. Constructed entirely from heavy-duty Inconel alloy across both the outer body and internal baffle stack, this suppressor provides maximum thermal endurance and structural longevity under severe semi-automatic and full-automatic firing schedules.

At the mechanical core of the MCQ-2 is KAC's Progressive Radial Tube (PRT) vented baffle technology, which controls gas dynamics to significantly reduce backpressure and gas blowback directed toward the operator. This low-pressure design preserves action cycling speed, decreases component wear, and eliminates excessive toxic gas in the shooter's face. Utilizing KAC's proprietary Quick Detach Coupling (QDC) interface, the MCQ-2 attaches seamlessly to KAC QDC 3-Prong Flash Hiders and Open Brake Kits, dramatically slashing first-round flash signature down to 0.61 mcd*s while dropping sound levels to 141 dBA at the shooter's ear. Fully sealed and maintenance-free, the MCQ-2 represents the gold standard in military-grade 5.56 muzzle suppression.

Features

PRT Vented Low-Backpressure Baffle Design:
Utilizes Progressive Radial Tube (PRT) technology to optimize forward gas flow, reducing blowback gas to the shooter's face and maintaining natural action timing.

100% Inconel Alloy Construction:
Both the inner baffle stack and outer suppressor body are precision-crafted from Inconel alloy for unmatched resistance to extreme heat, erosion, and sustained full-auto stress.

KAC Quick Detach Coupling (QDC) Mount:
Proprietary QDC attachment architecture ensures fast, secure locking and consistent point-of-impact return across compatible KAC muzzle devices.

Ultra-Compact CQB Profile:
Adds a minimal 3.9 inches to the bare muzzle (4.5 inches overall length), preserving weapon weight balance and maneuverability in tight quarters.

Superior Flash Mitigation:
Dramatically suppresses muzzle flash signature down to 0.61 mcd*s on the first round and 0.23 mcd*s on subsequent rounds, preserving night vision and operator concealment.

Sealed Maintenance-Free Architecture:
All-welded, non-user serviceable Inconel housing eliminates routine disassembly, ensuring maximum structural integrity over years of hard use.

Engineered Handguard & Shroud Clearance:
Designed with specific clearance guidelines (0.200" minimum gap for QDC lockup; 0.325" for KAC QDC Suppressor Shrouds) for flawless mating with URX handguard systems.

Specifications