Otter Creek Hydrogen S

OCL Hydrogen S: The Perfect Balance of Performance and Versatility

While the OCL Hydrogen S was designed as a mid-length, light suppressor with PRS shooters and hunters in mind, it's so much more than you would expect.   For its size, it's exceptionally quiet.  The balance of sound reduction, weight, and length is ideal for most applications.  The "S" is well-rounded, being able to fill multiple roles without the sacrifices found in many suppressors.  

For the mounting system, Otter Creek Labs includes a 5/8x24 direct thread mount with the Hydrogen S.  Should the user prefer a different solution, the Hydrogen is threaded in 1.375x24 (Omega/Bravo/HUB), allowing for nearly any other mounting system to be installed in it.  Direct thread, ASR, Key-Mo, Plan-B, Dual-Lok, and many more are possible. 

Your heavy bolt-action rifle used for PRS matches will love it just as much as an ultralight hunting setup.  While the initial design was around hunting and precision, the Hydrogen S shines just as brightly during drills on a 5.56 SBR or a short 300 Blackout for a relaxing day at the range.

Available in both 6.5 and 7.62 versions. 

Why Choose the OCL Hydrogen S?

• HUB compatibility.  The Hydrogen S includes 5/8x24 direct thread mount, plus it accepts any Bravo/HUB/Omega mounting system for maximum flexibility

• The lightweight titanium construction provides strength without the weight penalty

• OCL's Hydrogen S handles everything from 5.56 NATO to 300 Norma Magnum (7.62 version)

• True multi-role capability lets the Hydrogen excel in precision rifle competitions, hunting, or tactical applications without compromise

Features

• Available in 7.62 and 6.5mm caliber options

• Weight: Under 10 ounces (titanium construction)

• Rated for 300 Norma Magnum (7.62 version)

• Mount thread: 1.375x24 (Bravo/HUB/Omega standard)

• Engineered for PRS competition and hunting applications

What's Included

• OCL Hydrogen S suppressor

• 5/8x24 direct thread mount adapter

• Tube clamp for secure mount installation

• Owner's manual with specifications

• OCL stickers

Popular Mounting Systems

• Direct Thread Mounts: Dead Air, SilencerCo, Energetic Armament, YHM

• Quick-Detach Systems: SilencerCo ASR, Dead Air KeyMo, Xeno, YHM Kurz QD, Plan-B by Q

Minimum Barrel Length Requirements

• 24" minimum: 300 Norma, 300 RUM (7.62 version)

• 22" minimum: 300 PRC (7.62 version)

• 20" minimum: 300 Win Mag (7.62 version)

• 18" minimum: 6.5 PRC, 6.5 WSM

• 14.5" minimum: .308 Win, 6.5 Creedmoor, .260 Rem, .243 Win

• 11.5" minimum: 5.56 NATO, .223 Rem, 6.5 Grendel, 6mm ARC, 7.62x39

• 7" minimum: 300 Blackout supersonic

• 5" minimum: 300 Blackout subsonic

Why Buy Your OCL Hydrogen S from Capitol Armory?

As America's largest NFA dealer, Capitol Armory specializes in making suppressor ownership effortless. We handle all ATF paperwork, provide comprehensive NFA gun trusts, and offer at-home fingerprinting kits so you never leave your house. Our expert team guides you through every step, and our streamlined eForm 4 process means faster ATF approvals. When your tax stamp arrives, we ship your suppressor directly to your door with no FFL transfer required.