SBR Barrels & Upper Receivers

DD MK18 URG UPPER 556 10.3" MK18 FDE

Daniel Defense

PWS MK109 MOD 2-M UPPER 300BLK 9.75"

Primary Weapons Systems

COLT EPR UPPER KIT 5.56 14.5" BLK

Colt's Manufacturing

FAXON DUTY BBL 556NATO 11.5" MID GNR

Faxon Firearms

BALLISTIC BBL 8.6BLK 8" DRP PST PR B

Ballistic Advantage

GE URG-I NC 556NATO 10.3" BLK/DDC

Geissele Automatics

BALLISTIC BBL 5.56 10.5" CAR GOV 1/7

Ballistic Advantage

AERO M4E1-T UPPER 5.56 10.5" BLK

Aero Precision

GE URG-I NC 556NATO 11.5" BLK/DDC

Geissele Automatics

RADIAN UPPER 9" 300 BLK BLACK

Radian Weapons

AERO M4E1-T UPPER 5.56 14.5" FDE

Aero Precision

GE SUPER DUTY MOD1 5.56 11.5 URG BLK

Geissele Automatics

ANGSTADT 9MM 6" AR BARREL 1/2X28

Angstadt Arms

FIGHT MCR MIL DF UPR 556 PIC 12.5"

FightLite

BALLISTIC BBL 5.56 11.3" HANSON LPGB

Ballistic Advantage

CMMG BBL 5.7X28 10.4" PS90

CMMG

SOLGW L89 BS V2 5.56 12.5" A2 BLK

Sons of Liberty Gun Works

LANTAC 7.5" 300BLK BARREL BLK

LanTac USA LLC

MAXIM PDX UPPER 300BLK 5.5" BLK

Maxim Defense Industries

DD BBL ASSY 5.56 1-7 14.5" LW MID

Daniel Defense

LANTAC UTP UPPER 223 WYLDE 11.5" BLK

LanTac USA LLC

ROSCO 12.5" M4 5.56 NATO

Rosco Manufacturing

BALLISTIC BBL 556 11.5" CHF HNSN

Ballistic Advantage

LUTH AR 14.5" SOCOM BBL W/FSB

Luth-AR

RADIAN UPPER 9" 300 BLK FDE

Radian Weapons

LANTAC PATROL UPPER 300 BO 14.5"

LanTac USA LLC

AERO CMPLT UPPER 5.56 10.5" MOE BLK

Aero Precision

CMMG UPPR DSNT 5.7X28MM 6.5" CG

CMMG

FN BBL ASSEMBLY SCAR 16S 10"

FN America

ROSCO 10.5" M4 9MM NATO

Rosco Manufacturing

COLT M4 UPPER 5.56 11.5" LW BLK

Colt's Manufacturing

SOLGW PREC V2 BBL 223 WYLDE 12.5"

Sons of Liberty Gun Works

ANGSTADT CMPLT UPPR 9MM 6" BLK

Angstadt Arms

LANTAC 11.5" 300 BLACKOUT BARREL BLK

LanTac USA LLC

FAXON MATCH BBL 338ARC 14.5" GNNR

Faxon Firearms

HK UPPER MR556A4 5.56 11" BLK

Heckler & Koch

DD BBL ASSY 5.56 1-7 CHF 10.3" CARB

Daniel Defense

ROSCO BL BBL 14.5" 9MM

Rosco Manufacturing

ROSCO BL BBL 10.5" 5.56 1/7

Rosco Manufacturing

BALLISTIC BBL 5.56 14.5" CAR M4 1/7

Ballistic Advantage

FIGHT MCR DF UPPERR 556 MLOK 12.5"

FightLite

ROSCO BL BBL SAUCE PACK 11.5" 5.56

Rosco Manufacturing

BALLISTIC BBL 5.56 12.5" CAR GOV 1/7

Ballistic Advantage

ROSCO BL BBL 10.5" 300BLK HB 1/7

Rosco Manufacturing

ROSCO BL 8.2" 300BLK SAUCE PACK

Rosco Manufacturing

BAD 10.5 UPR AUTH ELITE 556AMBI GRAY

Battle Arms Development

PWS MK114 MOD 2-M UPR 14.5" 223WYLDE

Primary Weapons Systems

WMD 9MM 7.5" NITROMET BARREL

WMD Guns

NOVESKE BARREL 5.56 14.5" LIGHT AFGH

Noveske

DD M4V7S UPPER URG 11.5" 556NATO

Daniel Defense

MIDWEST UPPER 10.5" 223/556 M-LOK 9"

Midwest Industries

BALLISTIC BBL 5.56 11.5" CAR GOV 1/7

Ballistic Advantage

SOLGW E INDIA KIT V2 5.56 14.5" BLK

Sons of Liberty Gun Works

SOLGW L89 V2 5.56 12.5" A2 BLK

Sons of Liberty Gun Works

ROSCO 13.95" K9 BARREL MID LENGTH

Rosco Manufacturing

RADIAN UPPER 10.5" 223 WYLDE ODG

Radian Weapons

SOLGW PREC V2 BBL 6ARC 14.5" BLK

Sons of Liberty Gun Works

BALLISTIC BBL 300BLK 8" RIGID 1/7

Ballistic Advantage

MAXIM PDX UPPER 5.56 5.5" BLK

Maxim Defense Industries

CMMG BBL AND BCG KIT 5" 5.7X28MM

CMMG

SOLGW L89 V2 5.56 14.5" HUX BLK

Sons of Liberty Gun Works

NOVESKE CHAINSAW 300BLK 8" MLOK UPPR

Noveske

LBE READY BUILD KIT 13.7" CHF BBL

LBE Unlimited

AERO M4E1-T UPPER 300BLK 8" BLK

Aero Precision

MAXIM PDX UPPER 5.56 5.5" ARID

Maxim Defense Industries

BALLISTIC BBL 6.5GREN 12.5" SS

Ballistic Advantage

BALLISTIC BBL 5.56 11.3" HANSON .625

Ballistic Advantage

FN BBL ASSEMBLY SCAR 17S 13"

FN America

LANTAC PPD UPPER 300 BLACKOUT 7.5"

LanTac USA LLC

ROSCO BL BBL 7.5" 9MM 1/10

Rosco Manufacturing

RADICAL UPPR 300BLK 10.5" MLOK BLK

Radical Firearms

FAXON DUTY BBL 556NATO 10.5" SOCOM

Faxon Firearms

ROSCO K9 13.95" 556NATO SAUCE PACK

Rosco Manufacturing

NOVESKE BARREL 556 INFIDEL 13.7 STS

Noveske

GE SUPER DUTY MOD1 5.56 12.5 URG BLK

Geissele Automatics

BALLISTIC BBL 223WYLDE 14.5" PRM BLK

Ballistic Advantage

GE SUPER DUTY MOD1 5.56 10.3 URG DDC

Geissele Automatics

PWS MK114 MOD 1-M UPR 14.5" 223WYLDE

Primary Weapons Systems

BALLISTIC BBL 5.56 12.3" HANSON LPGB

Ballistic Advantage

BALLISTIC BBL 300BLK 10" RIGID

Ballistic Advantage

BAD WORKHRSE 556 UPPR 10.5 BLK N/BCG

Battle Arms Development

LBE AR 5.56NATO 1/7 TWIST 7.5" BLK

LBE Unlimited

BAD 10.5 UPPR WRKHORSE 556 AMBI BLK

Battle Arms Development

BALLISTIC BBL 5.56 10.3" HANSON LPGB

Ballistic Advantage

ROSCO 13.7" GVT 5.56 NATO

Rosco Manufacturing

BALLISTIC BBL 300BLK 8.3" HNSN LPGB

Ballistic Advantage

RADIAN UPPER 9" 300 BLK GRAY

Radian Weapons

BLACK RAIN BBL 458SOCOM 10.5"

Black Rain Ordnance

BALLISTIC BBL 5.56 13.7" MID GOV 1/7

Ballistic Advantage

ROSCO PB BBL 8.2" 300BLK

Rosco Manufacturing

FAXON ARAK-21 7.62X39 12.5" UPPER

Faxon Firearms

SEEKINS BBL 10.5" 223WYLDE BLK

Seekins Precision

ROSCO 11.5" K9 BARREL PATROL LENGTH

Rosco Manufacturing

FAXON MATCH BBL 300BLK 9" GNNR BLK

Faxon Firearms

SEEKINS BBL 8" 300BLK STS BLK

Seekins Precision

BALLISTIC BBL 308WIN 12.5" CAR GOV

Ballistic Advantage

SOLGW E INDIA KIT V2 5.56 12.5" BLK

Sons of Liberty Gun Works

LANTAC PDP UPPER 223 WYLDE 7.5" BLK

LanTac USA LLC

ROSCO BL BBL 11.5" 5.56 1/7

Rosco Manufacturing

BALLISTIC BBL 308WIN 14.5" TAC GOV

Ballistic Advantage