Otter Creek Hydrogen L

Maximum Sound Suppression for Long-Range Precision

The Otter Creek Labs Hydrogen L is a long, ultra-quiet, lightweight silencer designed for hunters, PRS shooters, and anyone looking for a light solution that still provides maximum decibel reduction.  The Hydrogen L prioritizes sound suppression above all else and is best used on firearms where length is not an issue.  

While the Hydrogen L ships with a 5/8x24 direct thread mount, it is compatible with virtually any popular mounting system on the market.  The HUB (also known as Bravo or Omega) mounting thread pitch allows numerous other systems to be installed.  It can easily handle direct thread or other popular solutions such as ASR, Xeno, Plan-A, Plan-B, and many more!

For a quiet, well-rounded can that offers a smaller footprint, look at the Hydrogen S.  If that's still too long, Otter Creek Labs also provides the super-compact Hydrogen K.  

Available in 6.5 and 7.62 versions.

Why Choose the Hydrogen L

• Maximum decibel reduction. Engineered for hunters and PRS competitors who demand the quietest possible shot

• Lightweight titanium construction won't affect rifle balance

• Magnum-rated performance handles up to 300 RUM and 300 Norma on 24" barrels (7.62 version)

• HUB/Bravo interface accepts dozens of quick-detach and direct-thread systems

Features

• 7.62 NATO and 6.5mm versions available

• Rated up to 300 RUM, 300 Norma (7.62 version with 24" barrel)

• Titanium baffles and tube

• HUB/Bravo/Omega (1.375x24) mounting mattern

• Removeable 5/8x24 direct thread adapter

• Ideal for hunting rifles, precision rifle competition, and long-range applications

What's Included

• Otter Creek Labs Hydrogen L suppressor

• 5/8x24 direct thread mount adapter

• Protective tube clamp

• Installation instructions

• OCL stickers

Popular Mounting Systems

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

Quick-Detach Systems: SilencerCo ASR, Dead Air KeyMo, Xeno, Plan-B, Griffin Dual-Lok, YHM Kurz QD

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, 6.5 Grendel, 6mm ARC, 7.62x39

• 7" minimum - 300 Blackout supersonic

• 5" minimum - 300 Blackout subsonic

Why Buy Your Suppressor from Capitol Armory

As America's largest NFA dealer, Capitol Armory streamlines your suppressor purchase from start to finish. We handle all ATF Form 4 paperwork, provide expert compliance guidance, and deliver your suppressor directly to your door once approved. Our team includes NFA specialists who ensure your application is submitted correctly the first time, minimizing delays.