Description

The Otter Creek Labs Hydrogen K is a compact, lightweight suppressor purpose-built for precision shooters and hunters using .308 / 7.62 NATO. Constructed with a tubeless Grade 5 titanium design and external weight reduction, the Hydrogen K emphasizes reduced mass and increased surface area to shed heat more quickly. The product ships with a 5/8×24 direct thread adapter and a black nitride finish for corrosion resistance and a low profile.

Key Specifications

• The suppressor is configured for .308 / 7.62 NATO.
• The overall length measures 5 inches (no mount).
• The unit weighs 6.7 ounces (no mount).
• Construction material is Grade 5 titanium.
• The outer diameter is 1.625 inches.
• The listed thread pattern includes a 5/8×24 direct thread adapter and the Hydrogen series uses 1.375×24 rear threads for mounting systems.
• Finish is Black Nitride.
• The design is full-auto rated when used within the manufacturer’s stated temperature limits (referenced limit: 800 degrees in manufacturer materials).
• Box contents include a 5/8×24 direct thread adapter, a tube clamp, instruction/specs pamphlet, and stickers.

With a tubeless titanium construction and attention to thermal management, the Hydrogen K delivers a low-mass option for precision and hunting rigs where weight and cooling are priorities. Its compact 5-inch profile, included 5/8×24 adapter, and universal-style rear thread compatibility make it adaptable to a range of mounting choices while maintaining a practical footprint for field and match use.