Geissele Automatics Super Modular Rail 9.5" Mk4 05-283B

Geissele Automatics Super Modular Rail 9.5" Mk4 05-283B
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  • Item #: 05-283B
  • Manufacturer: Geissele
  • Manufacturer's Product Number: 05-283B
  • Condition: New
Price $235.00
Availability Not In Stock, Call

Geissele Automatics AR-15

Super Modular Rail Mk4 MLOK 9.5"

Aluminum Black 05-283B




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The Super Modular Rail (SMR) MK4 M-LOK™ is Geissele’s ultra-lightweight M-LOK option. These rails are purpose-built and feature integrated M1913 picatinny rail sections at the fore of the rail in the 3, 6 and 9 o’clock positions. Maximum venting for heat dissipation also dramatically reduces the rail's overall weight, while maintaining its same strong and rigid platform. Utilizing Magpul's M-LOK technology at the 3, 6, and 9 o'clock positions, as well as the upper 45 quadrants. The SMR MK4 is both versatile and modular, allowing the user to tailor their platform to his or her unique needs. The SMR MK4 also features Geissele's proprietary 2" 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. Bundled with a low-profile Geissele Super Gas Block, a $59 value, the SMR MK4 is not only feature packed, but it is also value packed.


The Super Modular Rail Mk4 MLOK from Geissele Automatics is an excellent choice for an upgrade on your M4 or new AR15 build. This free float rail system provides a lightweight yet rock solid foundation for your M-4s accessories and front sight. It is precision machined from aircraft grade aluminum and hard coat anodized. It requires the use of a low profile gas block. Accessory rails are not included, sold separately.

Specifications and Features:
Aerospace grade aluminum
Hard coat anodized
Barrel nut and hardware included
9.5" overall length
Inside diameter 1.35"
Outside diameter 2.11"
Weight including barrel nut 12.8 oz