LCT has released M-LOK variants of their LC3 and LK53 models, both retaining the full-steel upper receiver and barrel construction of their predecessors. These new versions incorporate design changes aimed at modernizing their aesthetics and increasing tactical adaptability. Both the LC3 M-LOK and LK53 M-LOK models feature a newly designed octagonal M-LOK handguard, constructed from CNC-machined aluminum alloy to reduce weight.

The LC3 M-LOK distinguishes itself with a polymer lower receiver, contributing to overall weight reduction. It is equipped with an SG1 buttstock and cheek pad. In contrast, the LK53 M-LOK features an enlarged handguard battery compartment, designed to accommodate an 11.1V 3-piece battery. It also incorporates a PK426 1913-X folding stock with a skeletonized design, attached via a 1913 20mm Picatinny rail adapter.