Otter Creek Labs Lithium 9Mm - Silencer Dt 1/2X28 Fde

The Otter Creek Labs Lithium 9mm silencer is a lightweight, titanium suppressor purpose-built for 9mm submachine guns, pistol-caliber carbines, and 9mm handguns. Machined from 6Al-4V Grade 5 titanium and CNC welded for durability, the Lithium delivers an exceptional weight-to-suppression ratio—just 5.7 ounces without the mount—making it an ideal choice for shooters who demand hearing protection without adding bulk to their rifle or pistol setup.

The suppressor's internal design and venting system are engineered to minimize port pop on direct blowback operating systems, a common issue with lighter cans on high-cycling platforms. The Lithium uses industry-standard 1.375×24 HUB/ASR Bravo rear mounting threads, giving you flexibility to pair it with your preferred mounting solution. It's compatible with both 3-lug and booster/piston mounts, and works seamlessly on 9mm handguns as well as PCCs.

This package ships with a 1/2×28 titanium direct-thread mount, a tube clamp for secure installation, and stickers. Note that if you're running this suppressor on larger rifle calibers like .350 Legend, .300 HAMR, .223/5.56, .308, or 6.5 Creedmoor, you'll need to use direct-thread mounting to maximize internal blast chamber volume and avoid obstruction from a traditional muzzle device.

The Lithium 9mm strikes a balance between weight savings and acoustic performance that appeals to competitive shooters, home-defense builders, and anyone running a modern 9mm platform where every ounce matters.

Key Features

• 6Al-4V Grade 5 titanium construction with CNC welding for strength and light weight
• Engineered to reduce port pop on direct blowback systems
• 1.375×24 (HUB/ASR Bravo) rear mounting threads for easy adapter compatibility
• Compatible with 3-lug and booster/piston mounts
• Works on both 9mm handguns and pistol-caliber carbines
• Includes 1/2×28 titanium direct-thread mount, tube clamp, and stickers

Specifications

Frequently Asked Questions

Will the Lithium 9mm work on my 9mm handgun?

Yes. The Lithium is compatible with 9mm handguns and includes a 1/2×28 titanium direct-thread mount for quick and easy attachment.

Can I use this suppressor on rifle calibers like .223 or .308?

The Lithium has a smaller blast chamber than typical rifle suppressors. If you fire it on larger rifle cartridges such as .350 Legend, .300 HAMR, .223/5.56, .308, or 6.5 Creedmoor, you must use direct-thread mounting to ensure the blast chamber isn't obstructed by a muzzle device and to maintain maximum internal volume.

What mounting options does the Lithium 9mm support?

The suppressor features 1.375×24 (HUB/ASR Bravo) rear mounting threads and is compatible with both 3-lug mounts and booster/piston mounts, giving you flexibility to adapt to your platform. The package includes a 1/2×28 titanium direct-thread adapter.

What's included in the box?

You receive the suppressor, a 1/2×28 titanium direct-thread mount, a tube clamp, and stickers. As of December 2024, the package no longer includes a socket, as Otter Creek Labs switched to a new direct-thread adapter design.