M4E1 Superlative Arms Piston Complete Upper Receiver Groups - Piston Upper 10.5" Barrel 9" Handguard Black
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Aero Precision
Overview
The M4E1 Superlative Arms Piston Complete Upper Receiver Group features a 10.5-inch barrel and is designed for the AR-15 platform, offering a complete assembly that makes installation straightforward for builders. The M4E1 receiver type ensures compatibility with a wide range of lower receivers, while the overall black finish gives it a sleek, tactical appearance. This upper is commonly found in short-barreled builds aimed at versatility and maneuverability, making it suitable for close-quarters engagements.
Specifications
M4E1 Superlative Arms Piston Complete Upper Receiver Groups - Piston Upper 10.5" Barrel 9" Handguard Black
Available Merchants(1)
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Stock Alert
Price and stock
The Aero Precision M4E1 Superlative Arms Piston Complete Upper Receiver Groups - Piston Upper 10.5" Barrel 9" Handguard Black was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $879 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
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