Geissele Automatics 05278B Super Modular Rail MK4 Black Picatinny Rail Rifle

Name: Geissele Automatics 05278B Super Modular Rail MK4 Black Picatinny Rail Rifle
Brand: Shooting Surplus
Price: 300.39 USD
Availability: InStock

Sold byShooting Surplus•Posted May 20, 2026

$300.39

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Deal Summary

Currently in stock.
Category: parts
SKU: 37464
Brand: Geissele Automatics

Price History

Deal Details

The Super Modular Rail (SMR) MK4 M-LOK 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. It also features Geissele's proprietary 2" long barrel nut.