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AR15 Pistol Upper Assembly / 5" 300 AAC / 1:5 / 160-820 Air Force
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 5.56 Nato / 1:5 / 160-817 Air Force
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 7.62x39 / 1:5 / 160-819 Navy
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 300 AAC / 1:5 / 160-820 Navy
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 5.56 Nato / 1:5 / 160-817 Navy
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 7.62x39 / 1:5 / 160-819 Coast Guard
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 300 AAC / 1:5 / 160-820 Coast Guard
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 5.56 Nato / 1:5 / 160-817 Coast Guard
This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum –...
Add to CartWas: $359.00On Sale $229.00 -
AR15 Pistol Upper Assembly / 5" 7.62x39 / Tan
Upgrade your build with the AR15 Pistol Upper Assembly / 5" 7.62x39 / 1:5 / Tan. This compact upper is built for reliable performance in micro AR pistol setups. Featuring a 5" barrel chambered in 7...
Add to CartWas: $389.00On Sale $249.00 -
AR15 Pistol Upper Assembly / 5" 300 AAC / Tan
Upgrade your build with the AR15 Pistol Upper Assembly / 5" 300 AAC / 1:5 / Tan. This compact upper is built for reliable performance in micro AR pistol setups. Featuring a 5" barrel chambered in 300...
Add to CartWas: $389.00On Sale $249.00 -
Add to CartWas: $160.00On Sale $148.00 -
AR15 Pistol Upper Assembly / 5" 7.62x39 / ANODIZED RED
Enhance your AR-15 pistol with the AR15 Pistol Upper Assembly / 5" 7.62x39 / 1:5 / Red. Built for performance and durability, this compact upper is ideal for shooters looking for a powerful,...
Was: $389.00On Sale $249.00
Limited Time Products
Limited Time Products – Exclusive AR15 Kits, Uppers & Parts
Don’t miss your chance to grab limited time AR15 products from AR15-Overstock.com — featuring top-performing micro AR pistol uppers, 5 inch ARP kits, and more. These exclusive builds and components are designed for shooters who want performance, precision, and unbeatable value.
From rifle kits and micro pistol kits to AR uppers and seasonal products, every item is built to last and priced to move fast. Whether you’re upgrading your setup or starting a new build, our limited time AR products deliver quality craftsmanship and head-turning designs you won’t find anywhere else.
Act fast — these kits and uppers are available only while supplies last.
Shop Micro AR Pistol Uppers, 5 Inch ARP Kits, and more limited-time builds today
