AR-15 MK1 Mod 1-M Upper Receiver Assembly 223 Wylde M-LOK - MK111 Mod 1-M 223 Wylde Upper Receiver W/11.85'''' Bbl
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Primary Weapon Systems
Overview
The AR-15 Mk1 Mod 1-M Upper Receiver Assembly is a complete upper designed for the AR-15 platform, featuring an 11.85-inch barrel chambered in .223 Wylde. This caliber allows for versatility in ammunition selection, accommodating both .223 Remington and 5.56 NATO rounds while optimizing performance and accuracy. Ideal for compact builds, this upper is particularly suited for those looking to create a lightweight, maneuverable setup for close-quarters engagements or tactical applications.
Specifications
AR-15 MK1 Mod 1-M Upper Receiver Assembly 223 Wylde M-LOK - MK111 Mod 1-M 223 Wylde Upper Receiver W/11.85'''' Bbl
Price and stock
The Primary Weapon Systems AR-15 MK1 Mod 1-M Upper Receiver Assembly 223 Wylde M-LOK - MK111 Mod 1-M 223 Wylde Upper Receiver W/11.85'''' Bbl was in stock most days in August 2026, but today only Brownells has it in stock. It dipped to $1,049.95 at Brownells for a stretch in August 2026, under its usual $1,088.70 to $1,129.95, so sales do come around. Buying today, the lowest price is $1,129.95 at Brownells, above August's low of $1,049.95, so a better deal may come back.
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