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Geissele Automatics
Overview
The Geissele Automatics 11.5 Super Duty Stripped Upper Receiver is designed specifically for AR-15 builds, featuring a stripped assembly that allows builders to customize their setup. With an 11.5-inch barrel and a 1:7 twist rate, this upper is optimized for 5.56 NATO caliber ammunition, providing a balance between maneuverability and performance. Commonly found in builds utilizing a mid-length gas system, it suits a variety of applications, from tactical to competition setups.
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Based on build data
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
Eotech 3x30.5mm x 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15
HandguardAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | 19 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 17 | |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 12 | |
| Eotech 3x30.5mm x 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN | 11 | |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | 10 | |
| Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15 | Handguard | 8 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 46.5% |
| Carbine | 37.2% |
| Rifle | 16.3% |
Builds in the community that include the Geissele Automatics Llc Ar-15 11.5 Super Duty Stripped Upper Receiver Black
| Build | Parts | Total |
|---|---|---|
 | 11 | $5018.53 |
 | 11 | $3409.93 |
 | 37 | $6242.16 |
 | 8 | $2040.40 |
 | 11 | $1673.72 |
 | 9 | $3286.10 |
 | 33 | $2663.40 |
 | 13 | $4376.18 |
 | 19 | $3405.74 |
 | 15 | $2252.06 |
 | 13 | $7052.26 |
 | 13 | $1878.03 |
3 global ratings
Picked the 11.5 Super Duty for an SBR build. Black anodize is consistent which is harder than it sounds for receivers at this length. Barrel extension shoulder is correctly cut, my barrel torqued in without binding. M4 feed ramps are present on the upper.
tight fit between upper and lower
Geissele Super Duty 11.5 inch upper in black anodize. M4 feed ramps cut correctly for SBR use. Forging is clean. Takedown pin holes are tight - no slop when pivoted. Worth the cost for a high pressure SBR build.
