Geissele 9.3" M-LOK MK4 DDC Super Modular Rail 05-283S

Geissele 9.3" M-LOK MK4 DDC Super Modular Rail 05-283S covers the short end of the MK4 line - same integrated Picatinny-plus-M-LOK layout as the bigger MK4 rails, just enough length trimmed off to suit pistol builds and short-barreled configurations.

The 3, 6, and 9 o'clock positions up front carry actual machined Picatinny sections rather than M-LOK slots pretending to do the same job- worth knowing if you're mounting a weapon light or laser that specifically wants a hard rail interface instead of an adapter. This Geissele MK4 Rail locks onto the receiver through Geissele's proprietary 2.25" barrel nut, which puts a lot more contact surface against the upper than a standard nut manages, and that's really the whole reason these rails don't drift off zero after you've pulled them for cleaning.

Aggressive venting on the lower sections is doing double duty - cutting weight and helping a hot barrel shed heat faster. This Super Modular Rail comes in at 9.3 ounces bare, 11.2 with the barrel nut, which is light without feeling thin or flexy in hand.

Key Features:

• 9.3" free-float length, full-length Picatinny top rail
• Integrated Picatinny sections at 3, 6, 9 o'clock
• M-LOK slots at 3, 6, 9 o'clock plus upper 45° quadrants
• 7000-series aluminum, Type III hardcoat anodized
• Proprietary 2.25" Geissele barrel nut
• Weight: 9.3 oz bare, 11.2 oz w/ barrel nut
• Desert Dirt Color finish
• Fits mil-spec AR-15 upper receivers

For a compact build in an earth-tone finish that still needs hard-mount points up front, this Geissele DDC rail checks that box without adding unnecessary bulk.