SCO 3LUG MUZZLE DEVICE 45ACP .578X28

The SCO 3-Lug Muzzle Device for .45 ACP gives you a quick-detach platform built for suppressor mounting. Whether you're setting up a precision build or upgrading an existing platform, this .578x28 threaded adapter delivers reliable indexing. As a licensed FFL dealer in Silicon Valley, we stock components for shooters across the Bay Area and beyond, from Livermore to the coast.

3-Lug Design and Suppressor Compatibility

The 3-lug configuration provides consistent rotational alignment when mounting suppressors or other muzzle devices. This design minimizes baffle strike risk and ensures repeatable suppressor indexing on every attachment cycle. The .578x28 thread pattern is standard for .45 ACP platforms. Silencer Co engineered this adapter for shooters who demand precision fit and durability. When you're building a suppressed .45 ACP setup, proper muzzle device selection matters—just like choosing the right firearm for your needs. For questions about legal ownership structures, check our resources on PC §32100 exempt revolvers and other regulatory topics. Visit our gun shop in Sunnyvale for our full catalog.

Frequently asked questions

Will this 3-lug device work with all .45 ACP suppressors?

Most .45 ACP suppressors with 3-lug mounts will attach to this device. Always verify your suppressor's mounting specification matches the .578x28 thread pattern before purchasing.

What is the weight and length of this muzzle device?

The SCO 3-Lug Muzzle Device ships at 0.1 pounds. For precise length specifications, contact us directly—dimensions vary slightly depending on your specific barrel setup and suppressor pairing.

How long is the California firearm waiting period?

California requires a 10-day waiting period from when DROS is submitted until you can take possession of the firearm. TacticCAL is your gun shop Daly City in the Bay Area.