SKU CSSI|FC01SUPMSPEC556S Category

Lantac M-SPEC 556 Direct Thread Suppressor 5.56mm Black – Includes 1/2×28 DT Hub

Lantac M-SPEC 556 Direct Thread Suppressor 5.56mm Black – Includes 1/2×28 DT Hub

$532.00

1 in stock

The M-SPEC556S is a .223/5.56mm caliber suppressor precision machined from 17-4 Stainless Steel in H900 condition for improved corrosion resistance and lifespan. Its tubeless baffle design is 360° full penetration laser welded which reduces thermal stress and distortion of the assembly through the manufacturing process. 

Each suppressor comes as standard with our 1/2-28 UNEF direct thread HUB adapter which can be swapped out with any standard 1.375×24 TPI mounting system.

The supplied HUB adapter can be fitted and removed using a standard armorers wrench barrel nut tool.

Key Features:
Fully welded baffle design???.
?1/2-28 direct thread HUB mount included.
Larger baffle volume for improved noise suppression.
17-4 Stainless Steel in H900 condition.
130dB tested to MIL-STD-1474E.

Full Auto rated with adequate cooling between magazines.
Warrantied against manufacturing defects.
Weight: 13.5oz without mount.
Length: 6.0'' without mount.
Diameter: Base 1.677' Body 1.610''.

Minimum barrel length of 7.5'' (.223/5.56mm) 10.5'' (6ARC).

Additional information

Upc

614347641859

Manufacturer

Lantac USA

Manufacturer part number

01-SUP-MSPEC556S

Shipping weight

1.3

Thread pattern

1/2"x28

FAQ

BJ Firearms LLC is a federally licensed firearms business focused on providing quality firearms, accessories, and related services while promoting responsible ownership, education, and community engagement.

The company was founded to serve firearm enthusiasts with knowledgeable service, real-world experience, and a commitment to professionalism and safety.

We focus on real experience, personalized service, hands-on product knowledge, and community involvement — not just sales. Our goal is to help customers make informed decisions and feel confident with their equipment.

Yes. We operate as a federally licensed firearms dealer (FFL), following all applicable federal, state, and local regulations.

Yes. We partner with trusted suppliers to provide quality products and reliable sourcing.

Yes. We partner with content creators and industry professionals to provide real-world insights and experiences.

We work with everyone — from first-time buyers to experienced enthusiasts. Education and guidance are a big part of what we do.

We offer firearms, accessories, gear, and related equipment depending on availability and customer needs.

Yes. We help customers evaluate their needs, experience level, and intended use to find the right fit.

Yes. Depending on the request, we can help source specific products or assist with custom configurations.

Yes. We actively engage in hands-on experiences, demonstrations, and community-related firearm activities when possible.

Yes. We support content that helps people learn about equipment, safety, and responsible firearm ownership.

Social Media Posts

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Customer Reviews

“Outstanding customer service.” I had a lot of questions before buying, and they walked me through everything without pressure. Super knowledgeable and easy to work with. You can tell they actually care about their customers.
Verified Customer
“Best experience I’ve had buying gear.” Professional, responsive, and honest. They helped me choose exactly what I needed without overselling anything. I’ll definitely be coming back.
Verified Customer
“Great people, great service.” Very down-to-earth and easy to talk to. They explain things clearly and make sure you understand your options. Highly recommend, especially if you’re new.
Verified customer

BJ FIREARMS LLC

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