OCL Hydrogen S | 6.5 Creedmoor | Ti | 5/8-24 | HYDS65

The Otter Creek Labs Hydrogen S is a lightweight, titanium rifle suppressor configured for 6.5-caliber use. It employs a tubeless design and external weight reduction to lower mass while maintaining structural strength. The unit measures 7 inches in length, has a 1.625-inch outside diameter, and weighs approximately 9.3 ounces (no mount). It ships with a 5/8-24 direct thread adapter and a tube clamp for mounting.

Designed with precision shooters and long-range hunters in mind, the Hydrogen S balances low weight and reduced thermal mass to cool more quickly between strings. Typical applications include precision rifle series (PRS) competition and lightweight hunting or match rigs.

Product Specifications

• The manufacturer is Otter Creek Labs (OCL).
• The model is Hydrogen S.
• The manufacturer part number is HYDS65.
• The stated caliber is 6.5 Creedmoor.
• The suppressor material is Titanium.
• The length is 7 inches (no mount).
• The outside diameter is 1.625 inches.
• The weight is 9.3 ounces (no mount).
• The listed thread pattern for the included adapter is 5/8-24.
• The product is listed as full-auto rated when operating within the stated temperature limit.
• The item includes a 5/8×24 direct thread adapter and tube clamp.
• The Hydrogen series is described as using an industry-standard 1.375×24 rear thread for mounting options.
• The finish/color is listed variably as Black (listed in source data as Cerakote and as Black Nitride).
• The UPC is 664533654033.

The Hydrogen S provides a lightweight suppressor option for shooters who prioritize reduced weight and rapid cooldown on match rifles and hunting platforms. Its tubeless titanium construction and included mounting accessories make it suitable for shooters looking for a minimal-mass, durable suppressor compatible with common 5/8-24 host threads.

Users commonly praise the Hydrogen S for its lightweight construction and quiet performance relative to its size.