Upper — Best Prices Today
4,387 listings tracked · 1,680 in stock
4,387 upper listings are tracked, 1,680 of them in stock across 20 retailers. In-stock listings appear first. Each upper product page shows its current offers and recorded price history.

Brownells
Anderson Manufacturing 458 Socom Stripped Upper Receiver - .458 Socom Stripped Upper Receiver Aluminum Black$79.99
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Brownells
Brownells Brn-4 Piston Upper Receiver Kits - Brn-4 10.4'''' Upper Receiver Kit W/ Medium Profile Barrel$1,839.99
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Brownells
Aero Precision M4e1 5.56 Assembled Upper Receiver W/M-Lok Atlas S-One Handguard - M4e1 5.56 Assm Uppr 11.5'''' Carbine 9'''' Atlas S-One Hg Blk$429.99
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Brownells
Brownells Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 16'''' Heavy Bbl Complete Upper W/13.5'''' Handguard$1,375.99
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Brownells
Brownells Brn-180 Scnr 223 Wylde 13.9" Complete Upper Receiver Assembly - Brn-Scnr 223 Wylde 13.9''''bbl Upper Receiver Black$1,199.99
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Brownells
Stag 15 300 Blackout 16in Upper Receivers - Stag 15 .300 Blackout 16 In Upper$549.99
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Brownells
Brownells Ar-15 16'''' Upper Receiver Assemblies 5.56mm - Brn-15 5.56mm 16'''' Bbl .750'''' Gb Upper W/Charging Handle & Bcg$462.99
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Brownells
Sons Of Liberty Gun Works Broadsword-89 6mm Arc Assembled Upper Receiver - Broadsword-89 6mm Arc 14.5'''' Bbl 13'''' M89 Rail W/Nox$1,235.00
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Brownells
Brownells Qrb Upper Receiver Takedown Kits W/ Law Folding Adapter - Qrb Upper Takedown Kit Carbine W/ Folding Stock Adapater$649.99
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Brownells
Brownells Bundles M4e1-T 16'''' Upper Receiver 223 Wylde W/ Optics - Aero 16'''' Assemb Upper Mid-Length W/Exps3-0 Holo Red Dot$1,162.99
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Brownells
Foxtrot Mike Products Mike-9 Enhanced Forward Charging Upper Receivers - Enhanced Mike-9 16in Upper$382.99
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Brownells
Brownells Bundles Brn-4 Upper Receiver Build Kits - Brn-4 Upper Receiver Build Kit, 14.5'''' Heavy Barrel$1,075.99
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Brownells
The Device Manufacturing. Ar-308 Upper Receiver Fixture - Mkii Device For 308 Family$329.99
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Brownells
Brownells Brn-180s(R) Gen2 13.9/14.5 223/5.56 Complete Upper Receiver Assy - Brn-180 Gen 2 13.9'''' 223 Wylde Upper Receiver Assy Black$899.99
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Brownells
Brownells Brn-4 Assembled Upper Receivers - Brn-4 Assembled Upper Receiver 14.5'''' Medium Barrel Black$1,088.99
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Brownells
Brownells Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 16'''' Medium Chrome Lined Barrel Black$1,039.99
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Brownells
Brownells Brn-180(R) Gen2 223 Wylde 16'''' Complete Upper Receiver Assembly - Brn-180 Gen 2 Upper Receiver 223 Wylde 18.5'''' Barrel Black$899.99
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Brownells
Brownells Brn-4 Assembled Upper Receivers - Brn-4 Assembled Upper Receiver 16'''' Medium Barrel Black$959.99
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Brownells
Sons Of Liberty Gun Works East India 5.56x45 Assembled Upper Receiver Starter Kit For Ar15 - East India 5.56x45 Assembled Upper Medium 10.5'''' Bbl W/Rail$475.00
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Brownells
Aero Precision 5.56mm Complete Upper Receiver W/Brn Bolt Carrier Group - 5.56mm 16'''' Bbl M4 Comp Uppr Rcvr W/Brn Bcg & Charge Handle$548.99
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Brownells
Brownells Brn-180 Scnr 223 Wylde 16" Complete Upper Receiver Assembly - Brn-Scnr 223 Wylde 16''''bbl Upper Receiver Black$1,199.99
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Brownells
Primary Weapons Mk107 Mod 1-M 223 Wylde Complete Upper Receiver - Mk107 Mod 1-M 223 Wylde 7.75'''' Bbl Complete Upper Receiver$1,029.49
Out of stock
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Brownells
Stag 15 5.56 16in Tactical Nitride Upper Receivers - Stag 15l Left Hand Tactical Nitride Upper$599.99
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