Only if you have a piston upper, it is not compatible with direct impingement rifles.
Assuming you have a piston upper, LWRC says to order the "Non-Ambi Lower" for all standard/MIL-SPEC lower receivers.
I would recommend contacting LWRC at 410-901-1348
Monday - Friday: 8:00am - 5:00 pm or by e-mail at https://www.lwrci.com/ContactusLWRCI to discuss your project before ordering.
LWRC also says they have a direct Impingement model "coming soon"
Mark H.