M4 5.56 Complete Monolithic Upper Receiver Groups - M4 LE6943 Upper Group 11.5in Stripped
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Overview
The Colt M4 5.56 Complete Monolithic Upper Receiver Group features an 11.5-inch barrel and is designed for the AR-15 platform, ensuring compatibility with a wide range of lower receivers. This complete assembly provides a streamlined design, retaining the robustness of the M4 receiver type while being optimized for accuracy and reliability in the 5.56 NATO caliber. This upper receiver is commonly found in compact builds, particularly those intended for close-quarters engagements and tactical applications.
Specifications
M4 5.56 Complete Monolithic Upper Receiver Groups - M4 LE6943 Upper Group 11.5in Stripped
Available Merchants(1)
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Stock Alert
Price and stock
The Colt M4 5.56 Complete Monolithic Upper Receiver Groups - M4 LE6943 Upper Group 11.5in Stripped 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 $839.99 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
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