MK16 Super Duty Complete Upper Receivers 5.56mm - MK16 16'''' Super Duty Upper CHF Bbl, Ach, Nano Fh/BCG ODG
Geissele
Overview
The Geissele Automatics Mk16 Super Duty Complete Upper Receiver is a fully assembled upper designed for the AR-15 platform, featuring a 16-inch barrel chambered in 5.56 NATO. Its mid-length gas system provides a smoother cycling action, which can enhance the overall reliability and accuracy of your build. This upper is finished in an OD Green color, making it a versatile choice for various tactical and sporting applications.
Specifications
MK16 Super Duty Complete Upper Receivers 5.56mm - MK16 16'''' Super Duty Upper CHF Bbl, Ach, Nano Fh/BCG ODG
Build history on GunPartPicker
Builders on GunPartPicker first added the Geissele MK16 Super Duty Complete Upper Receivers 5.56mm - MK16 16'''' Super Duty Upper CHF Bbl, Ach, Nano Fh/BCG ODG to a build in March 2026.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $1,350 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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