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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.
Based on build data

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Lower Receiver
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Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger

BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
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Gas Tube
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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 | Lower Receiver | 11 |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 9 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 9 | |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 8 |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | Gas Tube | 8 |
| 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% |
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