Switchblock® Clamp-On 5.56mm


Legal Notices:

ATF Regulations

All ATF regulations apply.

Each state’s laws dictate what can or cannot be possessed in its own state. Some counties within each state hold different laws as well. Please contact your local ATF field office with any ATF related questions or concerns you may have. Noveske Rifleworks LLC reserves the right to use discretion when selling to each individual state.

Prop 65 Warning

Prop. 65 Warning for CA Residents WARNING:

This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information go to http://www.P65Warnings.ca.gov

Each Switchblock® model is designed for a specific caliber, barrel length, and gas system length.

The Clamp-On Switchblock® is a complete assembly with gas tube for use on barrels that are .750″ diameter at the front sight.

The Switchblock® is machined from 17-4ph stainless with a durable matte black nitride finish. The unit is secured to the barrel by 2 allen head cap screws.

The Clamp-On Switchblock® is designed for installation by an experienced armorer or gunsmith. Supplied with gas tube, wrench, and instructions. The Switchblock® cannot be installed with standard plastic handguards and does not fit under a railed or tubular handguard.

Switchblock® is a registered trademark of Noveske Rifleworks LLC, and is patented, US patent number 7,856,917.

We recommend a pinned gas block for Military, Law Enforcement, and Self Defense use. Rifles, Uppers, and Barrels are available with a pinned Switchblock® for these applications.

To allow access to the Switchblock®, it cannot be covered up by a handguard. The longest handguard that can be used with a carbine gas system is 7″ and a 9″ for the mid-length, intermediate, and rifle length.

Additional information

Weight N/A

10.5" Carbine, 11.5" Carbine, 12.5" Carbine, 12.5" Carbine (6.8mm), 14.5" – 16" Carbine, 14.5" Mid, 16" Mid, 18" Mid, 18" Intermediate, 18" Rifle, 20" Rifle