Aero Precision M4E1-T Complete Upper Receiver .300 AAC Blackout 8in Pistol Length R-One M-LOK Handguard Black
2 options
- 8", this page
- 10"out of stock
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Aero Precision
Overview
The Aero Precision M4E1-T Complete Upper Receiver is a fully assembled unit designed for the AR-15 platform, featuring an 8-inch barrel specifically chambered for .300 AAC Blackout. This upper includes a pistol-length gas system, which enhances reliability and reduces recoil, making it ideal for compact builds. Builders often incorporate this upper into short-barreled or pistol configurations, capitalizing on the versatility of the .300 Blackout cartridge.
Specifications
Aero Precision M4E1-T Complete Upper Receiver .300 AAC Blackout 8in Pistol Length R-One M-LOK Handguard Black
2 options
- 8", this page
- 10"out of stock
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Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1-T Complete Upper Receiver .300 AAC Blackout 8in Pistol Length R-One M-LOK Handguard Black to a build in June 2026.
Updated · from real builds on GunPartPicker
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