What handguards fit my gun?

Our Mk4 handguards along with any freefloating AR15 type handguard should work on our Mk4, Mk9, MkG, MkGs, Mk17, Mk10, and Mk57 lines as the upper receivers are based off a standard Mil-Spec upper receiver.

Our Mk3 handguard along with any freefloating handguards compatible with DPMS Gen 1 LR-308 High Pattern uppers/rifles should work on our Mk3 and Mk47 platforms.