Geissele Automatics Ar-15 11.5 Super Duty Stripped Upper Receiver DdcGeissele Automatics$1,150.00
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Geissele Automatics
The Geissele Automatics AR-15 16" Super Duty stripped upper receiver in DDC delivers the precision and craftsmanship serious shooters expect from one of the industry's most respected names. This is a complete upper assembly minus the bolt carrier group and charging handle—meaning you're starting with Geissele's proven platform and finishing it your way. The 16-inch mid-length-plus gas system strikes a practical balance between velocity, reliability, and shootability across a broad range of ammunition, making it equally at home in a duty rifle, competitive build, or field gun.
At the core is Geissele's Super Duty upper receiver paired with their MK16 Super Modular rail system via a center-aligning tab that eliminates rail rotation entirely—a detail operators and precision shooters rely on. The barrel is hammer-forged and chrome-lined 5.56mm with a 1-7 twist, cold-hammer-forged and machined in-house at Geissele's North Wales, Pennsylvania facility to their uncompromising standards. This combination delivers consistent accuracy and the soft-shooting character Geissele is known for. The stripped upper also includes a Super Compact gas block and comes with steel quick-detach inserts pre-installed.
DDC (Flat Dark Earth) offers a modern, versatile finish that looks right on duty, field, or competition builds. Whether you're assembling a precision rifle, a combat-ready AR, or experimenting with your own component selection, this upper gives you a battle-tested foundation from a builder that refuses to cut corners.
| Barrel Length | 16 inches |
| Caliber | 5.56mm |
| Barrel Twist | 1-7 |
| Gas System | Mid-Length Plus |
| Barrel Type | Chrome-lined, Cold Hammer Forged (CHF) |
| Rail System | MK16 Super Modular |
| Gas Block | Super Compact |
| Receiver | Super Duty Upper |
| Finish | DDC (Flat Dark Earth) |
| Configuration | Stripped (BCG and charging handle not included) |
This upper includes the receiver, barrel, rail system, gas block, and steel QD inserts. You'll need to source a bolt carrier group and charging handle separately to complete the upper assembly.
The mid-length-plus gas system on the 16-inch barrel strikes a balance between velocity and recoil impulse. It's designed to run reliably across a wider range of ammunition while maintaining softer shooting characteristics compared to a shorter carbine-length tube on a longer barrel.
Yes, this upper will mate to any standard AR-15 lower receiver. The receiver extension and buffer tube are handled by your lower assembly.
The center-aligning tab ensures the MK16 rail seats perfectly on the receiver with zero rotational play—critical for repeatability if you're mounting optics or other precision accessories.
Geissele Automatics
The Geissele Automatics AR-15 16" Super Duty stripped upper receiver in DDC delivers the precision and craftsmanship serious shooters expect from one of the industry's most respected names. This is a complete upper assembly minus the bolt carrier group and charging handle—meaning you're starting with Geissele's proven platform and finishing it your way. The 16-inch mid-length-plus gas system strikes a practical balance between velocity, reliability, and shootability across a broad range of ammunition, making it equally at home in a duty rifle, competitive build, or field gun.
At the core is Geissele's Super Duty upper receiver paired with their MK16 Super Modular rail system via a center-aligning tab that eliminates rail rotation entirely—a detail operators and precision shooters rely on. The barrel is hammer-forged and chrome-lined 5.56mm with a 1-7 twist, cold-hammer-forged and machined in-house at Geissele's North Wales, Pennsylvania facility to their uncompromising standards. This combination delivers consistent accuracy and the soft-shooting character Geissele is known for. The stripped upper also includes a Super Compact gas block and comes with steel quick-detach inserts pre-installed.
DDC (Flat Dark Earth) offers a modern, versatile finish that looks right on duty, field, or competition builds. Whether you're assembling a precision rifle, a combat-ready AR, or experimenting with your own component selection, this upper gives you a battle-tested foundation from a builder that refuses to cut corners.
| Barrel Length | 16 inches |
| Caliber | 5.56mm |
| Barrel Twist | 1-7 |
| Gas System | Mid-Length Plus |
| Barrel Type | Chrome-lined, Cold Hammer Forged (CHF) |
| Rail System | MK16 Super Modular |
| Gas Block | Super Compact |
| Receiver | Super Duty Upper |
| Finish | DDC (Flat Dark Earth) |
| Configuration | Stripped (BCG and charging handle not included) |
This upper includes the receiver, barrel, rail system, gas block, and steel QD inserts. You'll need to source a bolt carrier group and charging handle separately to complete the upper assembly.
The mid-length-plus gas system on the 16-inch barrel strikes a balance between velocity and recoil impulse. It's designed to run reliably across a wider range of ammunition while maintaining softer shooting characteristics compared to a shorter carbine-length tube on a longer barrel.
Yes, this upper will mate to any standard AR-15 lower receiver. The receiver extension and buffer tube are handled by your lower assembly.
The center-aligning tab ensures the MK16 rail seats perfectly on the receiver with zero rotational play—critical for repeatability if you're mounting optics or other precision accessories.