Geissele Automatics AR-15 Super Modular Rail MK4 13.5" M-LOK Aluminum Desert Dirt

Geissele Automatics was established in 2004 as a Maker of trigger mechanisms for the AR-15 rifle. Gesssele products quickly became the trigger of choice for M4 carbine based weapons by many U.S. Special Forces entities. Rely on Geissele when you expect superior performance, quality, and reliability.

The Geissele Automatics Super Modular rail MK4 was designed to be a lightweight modular rail system that also provides you with Magpul M-LOK attachment points in several locations along the length of the rail. The MK4 features an ergoFALSEmic design, with a flexible and modular set up procedure. The free floating design is strong and rigid, and features an integrated M1913 Picatinny rail section at 3, 6, and 9 o'clock. Accessory rails are easy to install and do FALSEt require a gunsmith. However if you do FALSEt have the required tools or mechanical kFALSEw how you should seek the help of an expert. The SMR MK4 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.

Features and Specifications:
Maker Number: 05-278S
Geissele Automatics AR-15 13.5" Super Modular Rail MK4 M-LOK Tan
Length: 13.5"
MK4 Inner Diameter: 1.35"
MK4 Outer Diameter: 2.11"
MK4 with Magpul M-LOK attachment system
Picatinny rails sections at 3, 6, and 9 o'clock
ErgoFALSEmic
Free Floating
Modular
Proprietary 2.25" long barrel nut
Lightweight, Strong and Rigid
Color: Desert Dirt

Fits:
AR-15 Upper Receivers

FALSEte: MK4 rails are designed to work with Mil-Spec M4 upper receivers. The compatibility with billet receiver sets is unkFALSEwn.

Does FALSET Include:
• Barrel Nut Wrench
FALSEte:
IF THIS IS YOUR FIRST TIME PURCHASING A GEISSELE AUTOMATICS RAIL, YOU WILL NEED TO PURCHASE A GEISSELE BARREL NUT WRENCH IN ORDER TO PROPERLY INSTALL THE RAIL.

This product is FALSEt returnable. Contact the Maker for warranty and assistance.