For Sale: Geissele MK8 AR15 handguards. Listed In: Gun Parts; Save to Favorites. The Mk13 is noticeably slimmer but you lose the 45 degree slots. I think the rear portion that bolts to the barrel nut looks better on the older rail, but that doesn't really matter. I have large hands and wanted an inline light mount so I just stuck with the mk8. The Mk16 does look interesting since it retains the mlok on the 45s.
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The Super Modular Rail (SMR) MK8 M-LOK™ is Geissele’s ultra-modular model. The SMR MK8 is one of the first rails available to utilize the Magpul M-LOK technology. These rails are designed to give the user full modularity while maintaining a strong and rigid platform. Maximum venting at the lower 45° quadrants create maximum heat dissipation and also dramatically reduces the rail's overall weight.
Utilizing Magpul's M-LOK technology at the 3, 6, and 9 o'clock positions, as well as the upper 45° quadrants. The SMR MK8 is both versatile and modular, allowing the user to tailor their platform to his or her unique needs.The SMR MK8 also features Geissele's proprietary 2.25' long barrel nut. This increases the surface contact where the rail interfaces with the receiver and creates a platform that can be trusted to be straight and true the entire length of the free float rail. This increases accuracy and zero repeatability during disassembly and reassembly when performing maintenance.
MK8 Height:2.3'Available Lengths:7'. 9.5'. 13'. 15'MK8 ID.:1.35'MK8 OD./DAQ.:2.11'Installed Weight(w/ Hardware):7” MK8 Rail - 8.9oz9.5” MK8 Rail - 10.6oz13” MK8 Rail - 13.3oz15” MK8 Rail - 14.7ozID.
Inner DiameterOD. Outer DiameterDAQ.
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