Uppers

Shop precision-engineered upper receivers for rifles, designed for accuracy, reliability, and custom builds.
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Picture of Brownells BRN-15 5.56MM 16'' BBL .750'' GAS BLOCK UPPER RECEIVER 4027-3410-B1

Brownells BRN-15 5.56MM 16'' BBL .750'' GAS BLOCK UPPER RECEIVER 4027-3410-B1

$447.99 $364.08
Picture of Brownells BRN-15 5.56MM 16'' BBL .625'' GAS BLOCK UPPER RECEIVER 4027-3410-B2

Brownells BRN-15 5.56MM 16'' BBL .625'' GAS BLOCK UPPER RECEIVER 4027-3410-B2

$447.99 $353.19
Picture of Brownells BRN-15 5.56MM 13.7'' BBL .750'' GAS BLOCK UPPER RECEIVER 4027-3410-B3

Brownells BRN-15 5.56MM 13.7'' BBL .750'' GAS BLOCK UPPER RECEIVER 4027-3410-B3

$447.99 $353.19
Picture of Brownells BRN-15 5.56MM 11.5'' BBL .750'' GAS BLOCK UPPER RECEIVER 4027-3410-B4

Brownells BRN-15 5.56MM 11.5'' BBL .750'' GAS BLOCK UPPER RECEIVER 4027-3410-B4

$447.99 $386.68
Picture of Brownells BRN-601 5.56MM 20'' BBL UPPER RECEIVER NONE

Brownells BRN-601 5.56MM 20'' BBL UPPER RECEIVER NONE

$1,007.99 $794.69
Picture of Brownells BRN 733 C7 5.56 UPPER RECEIVER, 11.5'' 1-7 TWIST BLACK BRN 733 BRN 733 BRN 733 BRN 733 BRN 733

Brownells BRN 733 C7 5.56 UPPER RECEIVER, 11.5'' 1-7 TWIST BLACK BRN 733 BRN 733 BRN 733 BRN 733 BRN 733

$944.99 $745.02
Picture of Brownells BRN-16A4 5.56X45 NATO 20'' BBL UPPER RECEIVER BRN 16A4 BRN 16A4 BRN 16A4

Brownells BRN-16A4 5.56X45 NATO 20'' BBL UPPER RECEIVER BRN 16A4 BRN 16A4 BRN 16A4

$755.99 $613.08
Picture of Brownells BRN-16A2 5.56X45 NATO 20'' BBL UPPER RECEIVER BRN16A2

Brownells BRN-16A2 5.56X45 NATO 20'' BBL UPPER RECEIVER BRN16A2

$1,007.99 $794.69
Picture of Brownells BRN-180S GEN 2 14.5'' 223 WYLDE UPPER RECEIVER BLACK BRN-180S GEN 2 BRN-180S GEN 2 BRN-180S GEN 2

Brownells BRN-180S GEN 2 14.5'' 223 WYLDE UPPER RECEIVER BLACK BRN-180S GEN 2 BRN-180S GEN 2 BRN-180S GEN 2

$1,133.99 $894.03
Picture of Brownells BRN-180 GEN 2 13.9'' 223 WYLDE UPPER RECEIVER ASSY BLACK BRN-180S GEN 2 BRN-180S GEN 2 BRN-180S GEN 2

Brownells BRN-180 GEN 2 13.9'' 223 WYLDE UPPER RECEIVER ASSY BLACK BRN-180S GEN 2 BRN-180S GEN 2 BRN-180S GEN 2

$1,133.99 $894.03
Picture of Brownells BRN-4 ASSEMBLED UPPER 10.4'' MEDIUM CHROME LINED BARREL BLACK BRN-4-10.4-CL-UPPER

Brownells BRN-4 ASSEMBLED UPPER 10.4'' MEDIUM CHROME LINED BARREL BLACK BRN-4-10.4-CL-UPPER

$1,455.99 $1,147.89
Picture of Brownells BRN-4 ASSEMBLED UPPER 13.7'' MEDIUM CHROME LINED BARREL BLACK BRN-4-13.7-CL-UPPER

Brownells BRN-4 ASSEMBLED UPPER 13.7'' MEDIUM CHROME LINED BARREL BLACK BRN-4-13.7-CL-UPPER

$1,455.99 $1,147.89
Picture of Brownells BRN-4 ASSEMBLED UPPER 16'' MEDIUM CHROME LINED BARREL BLACK BRN-4-16-CL-UPPER

Brownells BRN-4 ASSEMBLED UPPER 16'' MEDIUM CHROME LINED BARREL BLACK BRN-4-16-CL-UPPER

$1,455.99 $1,147.89
Picture of Brownells BRN M16A1 UPPER RECEIVER 20'' RIFLE LENGTH, 1-12 TWIST, BLACK BRN-M16A1-12

Brownells BRN M16A1 UPPER RECEIVER 20'' RIFLE LENGTH, 1-12 TWIST, BLACK BRN-M16A1-12

$951.99 $750.54
Picture of Brownells BRN XM177E2 UPPER RECEIVER, 12.7'' 1-7 TWIST, PIN/WELD, BLACK BRN-17712-7

Brownells BRN XM177E2 UPPER RECEIVER, 12.7'' 1-7 TWIST, PIN/WELD, BLACK BRN-17712-7

$951.99 $759.37
Picture of Brownells BRN XM177E2 UPPER RECEIVER, 11.5'', 1-12 TWIST, BLACK BRN-17711-12

Brownells BRN XM177E2 UPPER RECEIVER, 11.5'', 1-12 TWIST, BLACK BRN-17711-12

$1,007.99 $794.69
Picture of Brownells BRN XM177E2 UPPER RECEIVER, 11.5'', 1-7 TWIST, BLACK BRN-17711-7

Brownells BRN XM177E2 UPPER RECEIVER, 11.5'', 1-7 TWIST, BLACK BRN-17711-7

$1,007.99 $794.69
Picture of Brownells BRN-GAU-5A UPPER RECEIVER, 12.7'' 1-12 TWIST, PIN/WELD, BLACK BRN-GAU12-12

Brownells BRN-GAU-5A UPPER RECEIVER, 12.7'' 1-12 TWIST, PIN/WELD, BLACK BRN-GAU12-12

$1,097.99 $870.63
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