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Upper Receivers 223 Items

Browse 155 Upper Receivers In Stock Up To 30% Off

Brownells Upper Receivers products have an average rating of 4.6/5 and 598 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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PRIMARY WEAPONS - MK1 ALPHA LT 223 WYLDE COMPLETE UPPER RECEIVER PRIMARY WEAPONS - MK1 ALPHA LT 223 WYLDE COMPLETE UPPER RECEIVER
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$1,299.95

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PRIMARY WEAPONS - MK111 MOD 2-M 223 WYLDE COMPLETE UPPER RECEIVER PRIMARY WEAPONS - MK111 MOD 2-M 223 WYLDE COMPLETE UPPER RECEIVER
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$1,299.95

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AERO PRECISION - 5.56 NATO ASSEMBLED UPPER RECEIVER W/NO FORWARD ASSIST FOR AR15 AERO PRECISION - 5.56 NATO ASSEMBLED UPPER RECEIVER W/NO FORWARD ASSIST FOR AR15
5 Stars
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$109.99

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FOXTROT MIKE PRODUCTS - AR-15 MIKE-45 COMPLETE UPPER RECEIVERS FOXTROT MIKE PRODUCTS - AR-15 MIKE-45 COMPLETE UPPER RECEIVERS
5 Stars
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$445.00

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BROWNELLS - BRN-16A4 COMPLETE UPPER RECEIVER BROWNELLS - BRN-16A4 COMPLETE UPPER RECEIVER
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$599.00

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FN AMERICA LLC - FN15/AR 20" RIFLE UPPER RECEIVER ASSEMBLY FN AMERICA LLC - FN15/AR 20" RIFLE UPPER RECEIVER ASSEMBLY
5 Stars
(4.6)

$809.00

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DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER
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$899.99

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FIGHTLITE INDUSTRIES - MCR DUAL-FEED 5.56X45 NATO UPPER RECEIVER FIGHTLITE INDUSTRIES - MCR DUAL-FEED 5.56X45 NATO UPPER RECEIVER
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Product badge GEMTECH - GVAC 5.56 UPPER RECEIVER WITH BOLT CARRIER GROUP GEMTECH - GVAC 5.56 UPPER RECEIVER WITH BOLT CARRIER GROUP
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$649.99

$839.00

In stock
Product badge BROWNELLS BUNDLES - M5 16" ASSEMBLED UPPER RECEIVER 308 WIN W/ OPTICS BROWNELLS BUNDLES - M5 16" ASSEMBLED UPPER RECEIVER 308 WIN W/ OPTICS
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$649.99 - $1,448.99

$819.99

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GREY GHOST PRECISION - AR-15 FORGED UPPER RECEIVER GREY GHOST PRECISION - AR-15 FORGED UPPER RECEIVER
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(5.0)

$104.99

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AERO PRECISION - M4E1-T ATLAS R-ONE ASSEMBLED UPPER RECEIVERS 10.5" 5.56MM AERO PRECISION - M4E1-T ATLAS R-ONE ASSEMBLED UPPER RECEIVERS 10.5" 5.56MM
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$534.99 - $569.99

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SHARPS BROS - AR-15/M4 5.56MM COMPLETE UPPER SHARPS BROS - AR-15/M4 5.56MM COMPLETE UPPER
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$799.99

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Product badge PRIMARY WEAPONS - MK116 PRO COMPLETE UPPER RECEIVER ASSEMBLY .223 WYLDE PRIMARY WEAPONS - MK116 PRO COMPLETE UPPER RECEIVER ASSEMBLY .223 WYLDE
5 Stars
(4.5)

$649.99

$746.99

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Product badge BROWNELLS BUNDLES - DD 14.5" M4A1 RIII UPPER RECEIVER W/ EOTECH OPTICS BROWNELLS BUNDLES - DD 14.5" M4A1 RIII UPPER RECEIVER W/ EOTECH OPTICS
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$1,444.99 - $1,548.99

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AERO PRECISION - M4E1 ENHANCED 5.56 NATO ASSEMBLED UPPER RECEIVER FOR AR-15 AERO PRECISION - M4E1 ENHANCED 5.56 NATO ASSEMBLED UPPER RECEIVER FOR AR-15
5 Stars
(4.5)

$199.99

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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
5 Stars
(5.0)

$1,029.49

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BROWNELLS - BRN-180 350 LEGEND UPPER W/ OPTIC, MOUNT, & MAGAZINE BROWNELLS - BRN-180 350 LEGEND UPPER W/ OPTIC, MOUNT, & MAGAZINE
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$1,399.00

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BROWNELLS - BRN-15 11.5" UPPER RECEIVER ASSEMBLY 5.56MM BROWNELLS - BRN-15 11.5" UPPER RECEIVER ASSEMBLY 5.56MM
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$399.99

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Product badge BROWNELLS BUNDLES - DD 14.5" M4A1 FSP UPPER RECEIVER W/ EOTECH OPTICS BROWNELLS BUNDLES - DD 14.5" M4A1 FSP UPPER RECEIVER W/ EOTECH OPTICS
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$1,444.99 - $1,548.99

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CROSS MACHINE TOOL CO., INC. - AR-15/M16 BILLET UPPER RECEIVER CROSS MACHINE TOOL CO., INC. - AR-15/M16 BILLET UPPER RECEIVER
5 Stars
(4.3)

$209.99

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AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER 16" 5.56 CARBINE LENGTH AERO PRECISION - M4E1 ASSEMBLED UPPER RECEIVER 16" 5.56 CARBINE LENGTH
5 Stars
(4.0)

$579.99

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Product badge SIG SAUER, INC. - MCX-SPEAR LT AR CONVERSION KIT 7.62X39MM SIG SAUER, INC. - MCX-SPEAR LT AR CONVERSION KIT 7.62X39MM
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$1,699.00

$1,989.99

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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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