Geissele Automatics167527227
Geissele Automatics Ar-15 16 Super Duty Stripped Upper Receiver Ddc$1,150.00
Availability: In Stock
Current Stock: Out of stock
The Geissele Automatics AR-15 11.5 Super Duty stripped upper receiver in DDC is a purpose-built platform for shooters who demand precision and reliability from their rifle builds. This 11.5-inch upper comes as a stripped receiver paired with a cold hammer-forged, chrome-lined barrel and a Super Compact gas block — giving you the core foundation of a short-barreled rifle while leaving room to personalize the build with your choice of bolt carrier group, charging handle, and other internals. Whether you're assembling a short-range tack driver, a home-defense rig, or a compact duty rifle, Geissele's reputation for in-house manufacturing and tight tolerances carries through every component.
At the heart of this upper is Geissele's Super Duty receiver, engineered to mate with their MK16 Super Modular rail system via a center-aligning tab that eliminates rail rotation — a detail that matters when you're running optics and accessories. The 11.5-inch barrel features a 1-7 twist rate, suitable for stabilizing a wide range of 5.56mm ammunition, and ships with a carbine-length gas system tuned for the shorter barrel length. Geissele manufactures their barrels in-house at their North Wales, PA facility using cold hammer-forging and precision machining, applying military-grade phosphate finish for corrosion resistance.
The DDC (Flat Dark Earth) finish gives you a modern aesthetic that works across tactical and hunting builds alike. The upper receiver includes steel quick-detach inserts pre-installed, so you can mount slings and accessories right out of the box. This is a no-frills foundation — you'll need to source a bolt carrier group, charging handle, and handguard hardware to complete it — but that modular approach means you control every aspect of the final rifle.
| Barrel Length | 11.5 inches |
| Caliber | 5.56mm |
| Barrel Type | Cold Hammer-Forged, Chrome-Lined |
| Twist Rate | 1-7 |
| Gas System | Carbine Length |
| Gas Block | Super Compact |
| Receiver | Super Duty Upper |
| Finish | Mag Phosphate |
| Color | DDC (Flat Dark Earth) |
| Configuration | Stripped (receiver, barrel, and gas block only) |
This upper receiver comes with the barrel and gas block already installed, but you'll need to source a bolt carrier group, charging handle, and any handguard or rail accessories to finish the build. The receiver is designed to accept Geissele's MK16 Super Modular rail system via the center-aligning tab.
Yes, the Super Duty upper receiver is a standard AR-15 platform upper and will mate with any mil-spec AR-15 lower receiver.
The 11.5-inch barrel uses a carbine-length gas system, which is optimized for short-barrel configurations and helps manage recoil and cycling reliability with the shorter barrel length.
Yes, the upper receiver includes steel quick-detach inserts pre-installed, so you can attach QD sling mounts right away.
SKU: 167529633 • Weight: 2.58oz
Availability: In Stock
Current Stock: Out of stock
The Geissele Automatics AR-15 11.5 Super Duty stripped upper receiver in DDC is a purpose-built platform for shooters who demand precision and reliability from their rifle builds. This 11.5-inch upper comes as a stripped receiver paired with a cold hammer-forged, chrome-lined barrel and a Super Compact gas block — giving you the core foundation of a short-barreled rifle while leaving room to personalize the build with your choice of bolt carrier group, charging handle, and other internals. Whether you're assembling a short-range tack driver, a home-defense rig, or a compact duty rifle, Geissele's reputation for in-house manufacturing and tight tolerances carries through every component.
At the heart of this upper is Geissele's Super Duty receiver, engineered to mate with their MK16 Super Modular rail system via a center-aligning tab that eliminates rail rotation — a detail that matters when you're running optics and accessories. The 11.5-inch barrel features a 1-7 twist rate, suitable for stabilizing a wide range of 5.56mm ammunition, and ships with a carbine-length gas system tuned for the shorter barrel length. Geissele manufactures their barrels in-house at their North Wales, PA facility using cold hammer-forging and precision machining, applying military-grade phosphate finish for corrosion resistance.
The DDC (Flat Dark Earth) finish gives you a modern aesthetic that works across tactical and hunting builds alike. The upper receiver includes steel quick-detach inserts pre-installed, so you can mount slings and accessories right out of the box. This is a no-frills foundation — you'll need to source a bolt carrier group, charging handle, and handguard hardware to complete it — but that modular approach means you control every aspect of the final rifle.
| Barrel Length | 11.5 inches |
| Caliber | 5.56mm |
| Barrel Type | Cold Hammer-Forged, Chrome-Lined |
| Twist Rate | 1-7 |
| Gas System | Carbine Length |
| Gas Block | Super Compact |
| Receiver | Super Duty Upper |
| Finish | Mag Phosphate |
| Color | DDC (Flat Dark Earth) |
| Configuration | Stripped (receiver, barrel, and gas block only) |
This upper receiver comes with the barrel and gas block already installed, but you'll need to source a bolt carrier group, charging handle, and any handguard or rail accessories to finish the build. The receiver is designed to accept Geissele's MK16 Super Modular rail system via the center-aligning tab.
Yes, the Super Duty upper receiver is a standard AR-15 platform upper and will mate with any mil-spec AR-15 lower receiver.
The 11.5-inch barrel uses a carbine-length gas system, which is optimized for short-barrel configurations and helps manage recoil and cycling reliability with the shorter barrel length.
Yes, the upper receiver includes steel quick-detach inserts pre-installed, so you can attach QD sling mounts right away.
SKU: 167529633 • Weight: 2.58oz