The Lantac M-SPEC 556K Direct Thread Suppressor is engineered for shooters who want dependable sound reduction in a compact, durable package. Precision machined from 17-4 stainless steel in H900 condition, this tubeless, fully welded design uses 360° laser-welded baffles to manage heat and pressure while maintaining structural integrity. Optimized internal volume helps reduce report on .223/5.56 platforms, and the included 1/2x28 direct thread HUB adapter makes it easy to mount on compatible rifles.

This model is ideal for range use, training, and general-purpose rifle shooting where consistent suppression and rugged construction matter. Its 6.0" length and 1.677" base diameter balance sound performance with manageable weight, while full-auto rating (with proper cooling) supports demanding use cycles. Backed by the manufacturer against defects and built around a standard 1.375x24 TPI HUB interface, it offers flexibility for future mounting options and reflects Lantac’s focus on precision machining and thoughtful design.

Key Features:

• Manufacturer: Lantac
• Model: M-SPEC 556K Direct Thread Suppressor
• Caliber: .223/5.56mm
• Length: 6.0" (without mount)
• Diameter: 1.677" base, 1.610" body
• Material: 17-4 stainless steel, H900 condition
• Mount Type: 1/2-28 UNEF direct thread HUB adapter (1.375x24 TPI interface)
• Sound Level: 130 dB tested to MIL-STD-1474E
• Weight: 13.5 oz (without mount)
• Minimum Barrel Length: 7.5" (.223/5.56mm), 10.5" (6ARC)
• Full Auto Rated: Yes, with adequate cooling between magazines