M4 5.56 Complete Monolithic Upper Receiver Groups - M4 LE6943 Upper Group 11.5in With BCG And Sights
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Overview
The Colt M4 5.56 Complete Monolithic Upper Receiver Group features an 11.5-inch barrel, making it well-suited for compact builds while maintaining effective performance with 5.56 NATO ammunition. As a complete assembly, it includes the upper receiver and necessary components, streamlining installation and ensuring compatibility with AR-15 platforms. This upper is commonly found in short-barreled rifle builds aimed at close-quarters applications.
Specifications
M4 5.56 Complete Monolithic Upper Receiver Groups - M4 LE6943 Upper Group 11.5in With BCG And Sights
Available Merchants(4)
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Price Alert
October 2026 on GunPartPicker
Colt M4 5.56 Complete Monolithic Upper Receiver Groups - M4 LE6943 Upper Group 11.5in With BCG And Sights ranked #360 of the 844 upper receivers builders added on GunPartPicker in October 2026. Builders on GunPartPicker first added it to a build in September 2026.
It was in stock most times we checked in October 2026, but today only Optics Planet has it in stock. Prices barely moved in October 2026, holding around $1,184.50, with no real sale all month. Buying today, the lowest price is $1,229 at Optics Planet.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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