MK16 Super Duty Complete Upper Receivers 5.56mm - MK16 11.5" Super Duty Upper CHF Bbl, Ach, Nano Fh/BCG Ddc
All Geissele upper receivers
Click to see full view
Geissele
Overview
The Mk16 Super Duty Complete Upper Receiver from Geissele Automatics features an 11.5-inch barrel chambered in 5.56 NATO, making it a robust option for those looking to enhance their AR-15 platform. This complete assembly allows for seamless integration with your lower receiver, providing a reliable and accurate shooting experience. Commonly found in builds designed for close-quarters engagements, this upper receiver offers versatility and performance in a compact form factor.
Specifications
MK16 Super Duty Complete Upper Receivers 5.56mm - MK16 11.5" Super Duty Upper CHF Bbl, Ach, Nano Fh/BCG Ddc
Build history on GunPartPicker
Builders have been adding the Geissele MK16 Super Duty Complete Upper Receivers 5.56mm - MK16 11.5" Super Duty Upper CHF Bbl, Ach, Nano Fh/BCG Ddc to their builds on GunPartPicker since March 2026. All time, it ranks #489 of the 1,714 upper receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and 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 37 retailers
Not sure which upper receiver to pick?
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
B5 Systems SOPMOD Government, Mil Spec, Coyote - SOP1352
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
SF SOCOM556-RC4-BK SUPPRESSOR G4 5.56 Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
SIG Sauer Romeo 5XDR Gen II Red Dot Dot w/ Juliet 5 Micro Magnifier - SORJ5X201
Geissele Automatics AR-15/M16 Super Charging Handle, Ddc
No reviews yet. Be the first to review this product!