AR-15 M4 Upper Receivers M-LOK 5.56mm - AR-15 16'''' M4 Upper Assy 5.56 No BCG/Charging Handle
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Overview
The Brownells AR-15 M4 Upper Receiver is a complete assembly designed for the AR-15 platform, featuring a 16-inch barrel chambered in 5.56 NATO. This upper receiver is built to M4 specifications, which means it is compatible with a wide range of M4 accessories and components, allowing builders to create versatile and reliable configurations. This type of upper commonly appears in builds focused on tactical applications and general-purpose use.
Specifications
AR-15 M4 Upper Receivers M-LOK 5.56mm - AR-15 16'''' M4 Upper Assy 5.56 No BCG/Charging Handle
Available Merchants(1)
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Stock Alert
Price and stock
The Brownells AR-15 M4 Upper Receivers M-LOK 5.56mm - AR-15 16'''' M4 Upper Assy 5.56 No BCG/Charging Handle 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 $419.99 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
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