The LMT 18” .308 Chrome Lined 1:11.25” RH 5R Twist Barrel is a caliber-converting, quick-change barrel for the LMT MWS rifle.

The Lewis Machine & Tool MWS rifle systems come with a wealth of enhancements like a monolithic handguard and upper receiver and a chrome lined barrel with a durable barrel nut lock-up system. Now you can build your own with the MWS .308 Barrel. This barrel is 18” and comes with a rifle length gas system with straight gas tube already installed. Ready to go from the factory, all you need to do is drop this barrel into the MWS upper receiver, torque it down and you are ready for the range. Attached to the end is an A2 flash hider. Get started on your LMT MWS AR-10 rifle build today.


  • Proprietary to the MWS AR-10 upper receiver
  • 18” barrel chambered in 7.62×51
  • Stainless steel barrel
  • Low profile gas block and rifle length tube pre-installed
  • A2 flash hider
  • 1:11.25 twist rate

This barrel is made for the LMT MWS Monolithic receiver. It will not fit MRP receivers.