Geissele Automatics Super Duty MOD 1 Heavy Barrel 5.56 NATO Complete Upper Receiver - 14.5" - DDC
Click to see full view
Geissele
Overview
The Geissele Automatics Super Duty MOD 1 Heavy Barrel Complete Upper Receiver is a fully assembled unit designed for the AR-15 platform, featuring a 14.5-inch barrel chambered in 5.56 NATO. This upper receiver is engineered for durability and reliable performance, making it an excellent choice for builders looking to create a versatile and robust firearm. It commonly appears in builds focused on the 5.56 NATO caliber, catering to a wide range of shooting applications.
Specifications
Geissele Automatics Super Duty MOD 1 Heavy Barrel 5.56 NATO Complete Upper Receiver - 14.5" - DDC
Build history on GunPartPicker
Builders on GunPartPicker first added the Geissele Automatics Super Duty MOD 1 Heavy Barrel 5.56 NATO Complete Upper Receiver - 14.5" - DDC to a build in July 2026.
It was out of stock everywhere we track for all of August 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $1,450 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 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
Popular alongside upper receivers on GunPartPicker
Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine Stock
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Bravo Company M16 Bolt Carrier Group Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Magpul AFG-2 Angled Fore Grip - Black
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
No reviews yet. Be the first to review this product!