SOS Einstein K

Einstein K 5.56 / 6MM ARC Suppressor by SOS

Get serious suppression without the bulk. The Einstein K delivers proven performance in a compact 5.25" package that won't weigh down your rifle or slow your movements. Designed and manufactured in Arizona by SOS, this full-auto-rated suppressor combines low backpressure engineering with rigorous durability testing, making it perfect for tactical applications, home defense, and dynamic shooting where every ounce and inch matters.

Why Choose the Einstein K Suppressor

Compact Without Compromise: At just 5.25" and 10.3 oz, the Einstein K adds minimal length and weight while delivering impressive tone reduction and low blowback. Perfect for maneuvering in tight spaces or running shorter barrel setups.

True Full-Auto Rating: This isn't marketing speak. The Einstein K is genuinely tested and rated for sustained full-auto fire. Built from 17-4 hardened stainless steel with full-penetration welds that won't fail under extreme heat and pressure.

Reduced Backpressure Design: Engineered to minimize gas blowback to the shooter, resulting in less fouling, reduced eye irritation, and improved reliability with suppressed and unsuppressed buffer systems.

Science-Driven Performance: SOS applies data and real-world testing to suppressor design, eliminating gimmicks in favor of proven engineering principles. The Einstein K represents refined simplicity that works.

Features

• Caliber Rating: 5.56 NATO / 6MM ARC
• Overall Length: 5.25 inches
• Weight: 10.3 ounces
• Construction: 17-4 Hardened Stainless Steel
• Weld Type: Full-Penetration Welded (superior strength)
• Finish Options: Cerakote finish in FDE or Black
• Full-Auto Rated: TRUE full-auto rated and tested
• Thread Adapter: 1/2x28 direct thread mount included
• Made in USA: Manufactured in Arizona

What's Included

• Einstein K Suppressor (FDE or Black finish)
• 1/2x28 Thread Adapter
• Manufacturer's Documentation
• SOS Warranty Information

Why Choose Capitol Armory

Capitol Armory stands out as America's premier suppressor dealer by combining an extensive inventory of top brands with an exceptionally streamlined NFA process that gets your tax submitted faster than traditional dealers. Their expert team handles all the complex ATF paperwork, offering both individual and trust options with professional guidance, while competitive pricing and services ensure the best deal on your suppressor. With responsive customer service and a user-friendly platform, Capitol Armory delivers the expertise and efficiency that both first-time buyers and seasoned enthusiasts rely on for their suppressor needs.