The MK1 MOD 1-M Replacement rail is for owners of PWS MK1 MOD 1 owners to replace their current KeyMod rail with MLOK®. Includes mounting hardware and instructions.

Please note, these handguards will not work on DI uppers, and are proprietary to the PWS system.

Product Specs:

Length: 13.624"

Gas Piston System: Mid-Length

For use on: PWS MK114 MOD 1/MOD 1-M uppers

As we do make occasional changes to our product line, the gas piston system length on our firearms has been updated a few times. Please ensure that your current handguard matches the lineart here, paying attention to the location of the gas adjustment settings. For further assistance, please contact PWS Customer Service.

*The MK111 MOD 1-M rail is the closest and currently only available replacement for use on the MK114 MOD 1/MOD 1-M with carbine length gas system. Please find the rail here.