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
Knights Armament Sr-25 A2 7.62 Nato /.308 Assembled Upper Receiver - Sr-25 A2 7.62 Nato/.308 20'''' Bbl Assembled Upper Rcvr Black$3,283.20
Out of stock
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Brownells · 2 offers
Sons Of Liberty Gun Works East India 5.56x45 Assembled Upper Receiver Starter Kit For Ar15 - East India 5.56x45 Assembled Upper Medium 11.5'''' Bbl W/Rail$475.00
Out of stock
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Brownells
Sons Of Liberty Gun Works Broadsword-89 6mm Max Assembled Upper Receiver - Broadsword-89 6mm Max 18'''' Bbl 16.75'''' M89 Rail W/Nox$1,187.50
Out of stock
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Brownells
Primary Weapons Ar-15 Mk1 Mod 1-M Upper Receiver Assembly 300 Blackout M-Lok - Mk109 Mod 1-M Upper Receiver 9.75 Barrel 300blk$1,029.49
Out of stock
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Brownells
Brownells Brn-180(R) Gen2 223 Wylde 16'''' Complete Upper Receiver Assembly - Brn-180 Gen 2 16'''' 7.62x39mm Upper Receiver Assembly$849.99
Out of stock
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Brownells
Knights Armament Sr-15 E3 Mod 2 Upper Receivers M-Lok - Ar-15 Upper Receiver Lpr Mod 2 18'''' Urx$2,172.99
Out of stock
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Brownells
Foxtrot Mike Products Ar-15 9mm Upper Receivers M-Lok Assembled - Ar-15 Mike-9 16'''' 9mm Upper Receiver M-Lok Assembled Black$425.00
Out of stock
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Brownells
Brownells Ar-15 M4 Upper Receivers M-Lok 5.56mm - Ar-15 16'''' M4 Upper Assy 5.56 No Bcg/Charging Handle$419.99
Out of stock
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Brownells
Brownells Gau-5a 12.7'''' 1-12 Upper Receivers - Brn-Gau-5a Upper Receiver, 12.7'''' 1-12 Twist, Pin/Weld, Black$788.79
Out of stock
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Brownells
Nordic Components 22rb Dedicated 22 Long Rifle Upper Receiver - 22rb 22lr 9.25'''' Upper W/Handguard, Bolt Saver & 10rd Mag$516.60
Out of stock
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Brownells
Brownells Bundles M5 16'''' Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16'''' Upper Mid-Length W/ Tango Msr 1-6x24mm Sfp Bdc6$981.99
Out of stock
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Brownells
Brownells Ar-15 Upper Receiver Completion Kits - Brn M16a1/C7 Upper Receiver Completion Kit$59.99
Out of stock
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Brownells
Sons Of Liberty Gun Works Ar-15 East India Match Upper Receiver Starter Kits - 6.5mm Grendel 18'''' East India Match Upper Receiver$384.21
Out of stock
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Brownells
Sons Of Liberty Gun Works M4-L89 5.56x45 Nato Assembled Upper Receiver - M4-L89 5.56x45 Nato 13.7''''bbl 13.75'''' L89 Rail W/Huxwrx Xl$1,021.25
Out of stock
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Brownells
Brownells Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 13.7'''' Medium Chrome Lined Barrel Black$1,119.99
Out of stock
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Brownells
Brownells Brn16a1(R) 20'''' Complete Upper Receivers - Brn M16a1 Upper Receiver 20'''' Rifle Length, 1-7 Twist, Black$679.99
Out of stock
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Brownells
Faxon Firearms Ascent 5.56x45 Nato Complete Upper Receiver For Ar-15 - Ascent 5.56x45 Nato 10.5'''' Complete Upper Receiver Black$529.00
Out of stock
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Brownells
Brownells Ar-15 Upper Receiver Cleaning Kit - Ar-15 Upper Receiver Standard Kit With Cotton Mop$36.99
Out of stock
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Brownells
Fightlite Industries Mcr Dual-Feed 223 Wylde Semi-Auto Upper Receiver - Mcr 223 Wylde 16.25'''' Bbl Pic&M-Lok Handguard Upper Euro Only$5,629.00
Out of stock
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Brownells
Geissele Automatics Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 16'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Odg$1,350.00
Out of stock
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Brownells
Brownells Bundles Brn-4 Upper Receiver Build Kits - Brn-4 Upper Receiver Build Kit, 10.4'''' Heavy Barrel$1,075.99
Out of stock
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Brownells
Stag 15 5.56 M4 Upper Receivers - Stag 15l Left Hand M4 Phosphate Upper$499.99
Out of stock
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Brownells
Brownells Bundles M5 16'''' Assembled Upper Receiver 308 Win W/ Optics - Aero M5 16'''' Upper Mid-Length W/ Exps2-0 Holographic Red Dot$1,323.99
Out of stock
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Brownells
Zaffiri Precision Zps.2 Complete Slide 9mm Luger Optic Ready For Glock(R) 43/43x - Zps.2 G43/43x 9mm Luger Optic Ready Complete Upper Slide Blk$499.99
Out of stock
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