Daily Deal: Apex Flat Forward Set Trigger Set For S&W M&P 2.0 - $171.00 $154.99 Today Only!

Daily Deal: Apex Flat Forward Set Trigger Set For S&W M&P 2.0 - $171.00 $154.99 Today Only!

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Upper Receivers 59 Items

Upper Receivers Up To 16% Off— 59 Products In Stock / 27 Models

Upper Receivers are purpose-built components designed to deliver consistent performance for the specific needs of recreational shooters, hunters, and professionals. Our lineup includes 59 in-stock products with savings Up To 16% Off on qualifying orders, all backed by our Forever Guarantee®.

We carry Upper Receivers from 32 of the most respected brands in the industry, including AERO PRECISION, BROWNELLS, BROWNELLS BUNDLES, DANIEL DEFENSE. Verified buyers rate our Upper Receivers 4.5 Ratings out of 936 Reviews from verified buyers, reflecting the durability and craftsmanship that earn repeat purchases.

From the range to the field, every Upper Receivers product we ship meets the standards our customers have trusted since 1939. Continue browsing our full selection of Rifle Receivers & Parts for more great products at Brownells.

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KNIGHT'S ARMAMENT - SR-25 K6 6.5MM CREEDMOOR ASSEMBLED UPPPER RECEIVER KNIGHT'S ARMAMENT - SR-25 K6 6.5MM CREEDMOOR ASSEMBLED UPPPER RECEIVER
5 Stars
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$3,146.40

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DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER
5 Stars
(4.9)

$899.99

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

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DANIEL DEFENSE - MK18 STRIPPED SOCOM UPPER RECEIVER DANIEL DEFENSE - MK18 STRIPPED SOCOM UPPER RECEIVER
5 Stars
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$899.99

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BROWNELLS - BRN-180 GEN 3 223 WYLDE 13.9" COMPLETE UPPER RECEIVER BROWNELLS - BRN-180 GEN 3 223 WYLDE 13.9" COMPLETE UPPER RECEIVER
5 Stars
(3.1)

$1,199.99

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BROWNELLS - BRN-180 GEN 3 300 BLACKOUT 9" COMPLETE UPPER RECEIVER ASSEMBLY BROWNELLS - BRN-180 GEN 3 300 BLACKOUT 9" COMPLETE UPPER RECEIVER ASSEMBLY
5 Stars
(2.9)

$1,199.99

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DANIEL DEFENSE - MK18 RIII 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - MK18 RIII 5.56X45MM STRIPPED UPPER RECEIVER
5 Stars
(4.8)

$899.99

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BROWNELLS - BRN-180 GEN 3 223 WYLDE 16" COMPLETE UPPER RECEIVER ASSEMBLY BROWNELLS - BRN-180 GEN 3 223 WYLDE 16" COMPLETE UPPER RECEIVER ASSEMBLY
5 Stars
(3.3)

$1,199.99

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DANIEL DEFENSE - M4A1 SOCOM BLOCK II 5.56 NATO STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 SOCOM BLOCK II 5.56 NATO STRIPPED UPPER RECEIVER
5 Stars
(4.6)

$899.99 - $949.99

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PRIMARY WEAPONS - BROWNELLS EXCLUSIVE MK1 ALPHA LT 223 WYLDE COMPLETE UPPER PRIMARY WEAPONS - BROWNELLS EXCLUSIVE MK1 ALPHA LT 223 WYLDE COMPLETE UPPER
5 Stars
(5.0)

$1,349.00

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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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BROWNELLS - AR-15 C7 STRIPPED UPPER RECEIVER BROWNELLS - AR-15 C7 STRIPPED UPPER RECEIVER
5 Stars
(3.8)

$149.99

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BROWNELLS - XM177E2 COMPLETE UPPER RECEIVERS BROWNELLS - XM177E2 COMPLETE UPPER RECEIVERS
5 Stars
(4.4)

$806.59 - $859.99

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BROWNELLS BUNDLES - DD 10.3" MK18 SOCOM UPPER RECEIVERS W/ OPTICS BROWNELLS BUNDLES - DD 10.3" MK18 SOCOM UPPER RECEIVERS W/ OPTICS
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$1,523.69 - $1,678.89

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ZRO DELTA - AR-15 FORGED M4 UPPER RECEIVER 5.56MM ZRO DELTA - AR-15 FORGED M4 UPPER RECEIVER 5.56MM
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$69.99

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BROWNELLS - GAU-5A 12.7" 1-12 UPPER RECEIVERS BROWNELLS - GAU-5A 12.7" 1-12 UPPER RECEIVERS
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$985.99

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PRIMARY WEAPONS - MK114 MOD 2-M 223 WYLDE COMPLETE UPPER RECEIVER PRIMARY WEAPONS - MK114 MOD 2-M 223 WYLDE COMPLETE UPPER RECEIVER
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$1,399.95

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BATTLE ARMS DEVELOPMENT INC. - WORKHORSE BLEM STRIPPED UPPER RECEIVER FOR AR-15 BATTLE ARMS DEVELOPMENT INC. - WORKHORSE BLEM STRIPPED UPPER RECEIVER FOR AR-15
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$79.99

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DANIEL DEFENSE - MK18 5.56 UPPER RECEIVER GROUP COMPLETE DANIEL DEFENSE - MK18 5.56 UPPER RECEIVER GROUP COMPLETE
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$1,454.00

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BROWNELLS - AR-15/M16 M16A2 STRIPPED UPPER RECEIVER BROWNELLS - AR-15/M16 M16A2 STRIPPED UPPER RECEIVER
5 Stars
(1.5)

$149.99

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BROWNELLS BUNDLES - DD 10.3" MK18 RIII UPPER RECEIVER W/ EOTECH OPTICS BROWNELLS BUNDLES - DD 10.3" MK18 RIII UPPER RECEIVER W/ EOTECH OPTICS
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$1,523.69 - $1,678.89

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BROWNELLS BUNDLES - DD 14.5" M4A1 FSP UPPER RECEIVER W/ EOTECH OPTICS BROWNELLS BUNDLES - DD 14.5" M4A1 FSP UPPER RECEIVER W/ EOTECH OPTICS
5 Stars
(0.0)

$1,523.69 - $1,678.89

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BATTLE ARMS DEVELOPMENT INC. - AR-15 WORKHORSE UPPER RECEIVERS- NO BCG OR CHARGING HANDLE BATTLE ARMS DEVELOPMENT INC. - AR-15 WORKHORSE UPPER RECEIVERS- NO BCG OR CHARGING HANDLE
5 Stars
(0.0)

$524.95

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KAK INDUSTRY LLC. - K-SPEC 5.56X45MM NATO COMPLETE UPPER RECEIVER KAK INDUSTRY LLC. - K-SPEC 5.56X45MM NATO COMPLETE UPPER RECEIVER
5 Stars
(3.5)

$599.99

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LMT DEFENSE - MRP-L M-LOK SHOVELNOSE 5.56MM ASSEMBLED UPPER RECEIVER LMT DEFENSE - MRP-L M-LOK SHOVELNOSE 5.56MM ASSEMBLED UPPER RECEIVER
5 Stars
(0.0)

$940.50

In stock
Product badge FAXON FIREARMS - ARAK-21 5.56X45 NATO COMPLETE UPPER RECEIVER FOR AR-15 FAXON FIREARMS - ARAK-21 5.56X45 NATO COMPLETE UPPER RECEIVER FOR AR-15
5 Stars
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$896.99

$919.08

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RADIAN WEAPONS - MODEL 1 UPPER & HANDGUARD SET RADIAN WEAPONS - MODEL 1 UPPER & HANDGUARD SET
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$814.95 - $924.95

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LMT DEFENSE - MRP-L M-LOK 5.56MM ASSEMBLED UPPER RECEIVER LMT DEFENSE - MRP-L M-LOK 5.56MM ASSEMBLED UPPER RECEIVER
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$890.10 - $940.50

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BATTLE ARMS DEVELOPMENT INC. - AR-15 LIGHTWEIGHT BILLET UPPER RECEIVER BATTLE ARMS DEVELOPMENT INC. - AR-15 LIGHTWEIGHT BILLET UPPER RECEIVER
5 Stars
(5.0)

$250.95

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FN AMERICA LLC - FN15/AR 16" CARBINE UPPER RECEIVER ASSEMBLY FN AMERICA LLC - FN15/AR 16" CARBINE UPPER RECEIVER ASSEMBLY
5 Stars
(4.0)

$1,013.02

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RISE ARMAMENT - WATCHMAN .223 WYLDE COMPLETE UPPER RECEIVER FOR AR-15 RISE ARMAMENT - WATCHMAN .223 WYLDE COMPLETE UPPER RECEIVER FOR AR-15
5 Stars
(0.0)

$749.00

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CMMG - RESOLUTE® MK4 5.56X45MM NATO ASSEMBLED UPPER RECEIVER CMMG - RESOLUTE® MK4 5.56X45MM NATO ASSEMBLED UPPER RECEIVER
5 Stars
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$595.38

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Products:  1  –  32  of 189