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Upper Receivers 224 Items

Browse 154 Upper Receivers In Stock Up To 46% Off

Brownells Upper Receivers products have an average rating of 4.6/5 and 601 reviews from verified buyers and brands like AERO PRECISION, BROWNELLS, BROWNELLS BUNDLES, & PRIMARY WEAPONS.  Check out all of our Rifle Receivers & Parts products at Brownells today.

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DANIEL DEFENSE - DDM4V7 PRO 18" 5.56MM NATO COMPLETE UPPER RECEIVER BLACK DANIEL DEFENSE - DDM4V7 PRO 18" 5.56MM NATO COMPLETE UPPER RECEIVER BLACK
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$1,572.00

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BROWNELLS BUNDLES - M4A1 BLOCK II TRIBUTE BUNDLE BROWNELLS BUNDLES - M4A1 BLOCK II TRIBUTE BUNDLE
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$1,499.00

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GEISSELE AUTOMATICS LLC - MK16 URG-I COMPLETE UPPER RECEIVERS 5.56MM GEISSELE AUTOMATICS LLC - MK16 URG-I COMPLETE UPPER RECEIVERS 5.56MM
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$1,450.00

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SONS OF LIBERTY GUN WORKS - AR-15 SAGE DYNAMICS UPPER RECEIVER ASSEMBLY 5.56 SONS OF LIBERTY GUN WORKS - AR-15 SAGE DYNAMICS UPPER RECEIVER ASSEMBLY 5.56
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$1,199.99

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GEISSELE AUTOMATICS LLC - AR-15 SUPER DUTY STRIPPED UPPER RECEIVERS 5.56MM GEISSELE AUTOMATICS LLC - AR-15 SUPER DUTY STRIPPED UPPER RECEIVERS 5.56MM
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Product badge BROWNELLS BUNDLES - BRN-180 GEN 2 COMPLETE UPPER RECEIVER WITH MI SIDE FOLDING STOCK BROWNELLS BUNDLES - BRN-180 GEN 2 COMPLETE UPPER RECEIVER WITH MI SIDE FOLDING STOCK
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$999.99 - $1,099.00

$1,099.00

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COLT - M4 ENHANCED PATROL RIFLE 5.56 UPPER RECEIVER GROUPS COLT - M4 ENHANCED PATROL RIFLE 5.56 UPPER RECEIVER GROUPS
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$729.99 - $1,059.99

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PRIMARY WEAPONS - AR-15 MK1 MOD 1-M UPPER RECEIVER ASSEMBLY 223 WYLDE M-LOK PRIMARY WEAPONS - AR-15 MK1 MOD 1-M UPPER RECEIVER ASSEMBLY 223 WYLDE M-LOK
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$1,029.49

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FOXTROT MIKE PRODUCTS - AR-15 MIKE-15 GEN 2 UPPER RECEIVER ASSEMBLY 223 WYLDE FOXTROT MIKE PRODUCTS - AR-15 MIKE-15 GEN 2 UPPER RECEIVER ASSEMBLY 223 WYLDE
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$599.99 - $918.99

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AERO PRECISION - M5E1 ASSEMBLED UPPER RECIEVER AERO PRECISION - M5E1 ASSEMBLED UPPER RECIEVER
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$789.99 - $859.99

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Product badge DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER
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$849.99

$899.99

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Product badge BROWNELLS - BRN-180 350 LEGEND 16IN COMPLETE UPPER RECEIVER ASSEMBLY BROWNELLS - BRN-180 350 LEGEND 16IN COMPLETE UPPER RECEIVER ASSEMBLY
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$849.99

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Product badge BROWNELLS - BRN-180™ GEN 2 7.62x39 16IN COMPLETE UPPER RECEIVER ASSEMBLY BROWNELLS - BRN-180™ GEN 2 7.62x39 16IN COMPLETE UPPER RECEIVER ASSEMBLY
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$849.99

$899.99

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AERO PRECISION - M5E1 ASSEMBLED UPPER RECEIVER 6.5 CREEDMOOR BLACK AERO PRECISION - M5E1 ASSEMBLED UPPER RECEIVER 6.5 CREEDMOOR BLACK
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$759.99 - $779.99

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COLT - M4 UPPER RECEIVER ASSEMBLY NO HANDGUARDS COLT - M4 UPPER RECEIVER ASSEMBLY NO HANDGUARDS
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$749.99

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AERO PRECISION - M4E1 THREADED 6.5 GRENDEL ASSEMBLED UPPER RECEIVER W/ATLAS R-ONE AERO PRECISION - M4E1 THREADED 6.5 GRENDEL ASSEMBLED UPPER RECEIVER W/ATLAS R-ONE
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$509.49 - $689.99

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Product badge BROWNELLS - AR-15/M16 733 C7 11.5" 5.56 UPPER RECEIVER BROWNELLS - AR-15/M16 733 C7 11.5" 5.56 UPPER RECEIVER
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$649.00

$699.00

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STAG ARMS - STAG 15 5.56 16IN TACTICAL NITRIDE UPPER RECEIVERS STAG ARMS - STAG 15 5.56 16IN TACTICAL NITRIDE UPPER RECEIVERS
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$529.99 - $599.99

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AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER 18" 5.56 RIFLE LENGTH AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER 18" 5.56 RIFLE LENGTH
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$599.99

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Product badge AERO PRECISION - M4E1-T 223 WYLDE ASSEMBLED UPPER RECEIVER AERO PRECISION - M4E1-T 223 WYLDE ASSEMBLED UPPER RECEIVER
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AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER 5.56MM AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER 5.56MM
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$489.99 - $599.99

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AERO PRECISION - M4E1-T 300 BLACKOUT UPPER ASSEMBLIES AERO PRECISION - M4E1-T 300 BLACKOUT UPPER ASSEMBLIES
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$534.99 - $594.99

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AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER .300 BLACKOUT BLACK AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER .300 BLACKOUT BLACK
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$534.99 - $594.99

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AERO PRECISION - M4E1-T ATLAS R-ONE ASSEMBLED UPPER RECEIVERS 5.56MM AERO PRECISION - M4E1-T ATLAS R-ONE ASSEMBLED UPPER RECEIVERS 5.56MM
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$454.99 - $574.99

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