What thread pitch does the Rugged 3-Lug Adapter support?

This model supports 1/2x28 thread, which is standard for most 9mm pistol-caliber carbines and AR-9 barrels.

Which suppressors are compatible with the Rugged 3-Lug Adapter?

It’s compatible with Rugged Obsidian 9 and 45 suppressors and others using a Rugged 3-lug mount interface.

Why use a 3-lug adapter instead of a direct thread mount?

3-lug systems allow fast, tool-free attachment and removal without thread wear or need for Loctite — perfect for defensive or tactical setups.

Rugged 3-Lug Adapter – Quick-Attach Mount for Rugged Suppressors

Name: Rugged 3-Lug Adapter
Brand: Rugged Suppressors
Price: 67.35 USD
Availability: InStock

**Rugged 3-Lug Adapter 13.5x1lh** $67.35

Secure. Fast. Suppressor-Ready.

The Rugged 3-Lug Adapter is designed for shooters who demand quick, tool-free suppressor attachment on 9mm carbines, SMGs, or PCCs. Compatible with 1/2x28 threaded barrels and built to work flawlessly with the Rugged Obsidian 9 and other Rugged suppressors, this adapter offers a fast and reliable mounting solution for MP5 clones, AR-9s, and Scorpion EVOs.

Engineered for rugged use, the adapter provides rock-solid lock-up without compromising suppressor alignment. Whether you're on the range or in a tactical setting, the Rugged 3-Lug Adapter ensures your suppressor is always ready.

🔧 Features of the Rugged 3-Lug Adapter

Compatible with Rugged Obsidian 9 and 45
Fits 9mm barrels threaded 1/2x28
Designed for MP5-style 3-lug barrels
Black nitride finish for durability
Easy tool-less suppressor attachment and removal

🔄 3-Lug Mount vs. Threaded Adapter

Feature	3-Lug Adapter	Threaded Mount
Attachment Speed	Instant, no tools needed	Requires threading on/off
Thread Wear	None	Yes, possible over time
Suppressor Indexing	Auto-aligned via lugs	Requires careful thread alignment
Use Case	Tactical, fast-detach use	Range, fixed suppressor use

🔧 Suppressors Compatible with This Adapter

Rugged Obsidian 9
Rugged Obsidian 45 (with appropriate module)
Suppressors that accept Rugged 3-Lug Mounts
Can be used with other suppressors using Rugged's 3-lug interface

❓ FAQs About the Rugged 3-Lug Adapter

What is the Rugged 3-Lug Adapter used for?

It allows fast, secure mounting of compatible suppressors onto 3-lug barrels—commonly found on MP5s, AR-9s, and similar PCCs.

What thread pitch does it support?

The adapter uses 1/2x28 thread pitch, the standard for most 9mm platforms in the U.S.

Is it compatible with the Obsidian 9 and Obsidian 45?

Yes. The adapter is designed for use with the Obsidian 9 and can also work with the Obsidian 45 if configured with the correct 3-lug mount.

Why choose a 3-lug mount instead of direct threading?

3-lug adapters allow fast, tool-free removal, prevent thread wear, and offer repeatable alignment—ideal for defensive use or high round-count training.