GEISSELE Super Modular AR15 9.5in MK4 Sand Rail (MK4-95-SAND)

Full-length M1913 picatinny top railM-LOK slots on five sidesIncludes Geissele .750" Super Gas BlockIncludes Barrel NutDurable Black Hardcoat Anodized Finish

MK4 with Magpul M-LOK attachment systemPicatinny rails sections at 3, 6, and 9 o'clockErgonomicFree FloatingModularLightweight, Strong and Rigid The GEISS

MK4 with Magpul M-LOK attachment systemPicatinny rails sections at 3, 6, and 9 o'clockProprietary 2.25" long barrel nutLightweight, strong and rigidBlack Finish

MK14 with Magpul M-LOK Attachment SystemFull Length Top Mil-STD Picatinny RailM-LOK Modular Attachment Sections at 3, 6, and 9 o'clockErgonomicFree FloatingModularLightweight,

MK4 with Magpul M-LOK attachment systemPicatinny rails sections at 3, 6, and 9 o'clockErgonomicFree FloatingModularLightweight, Strong and Rigid The GEISS