SBR Barrels & Upper Receivers

DD BBL ASSY 556 1-7 CHF 10.3" GOV CR

Daniel Defense

DBB BBL 300 BLK 10.5" PSTL BLK

Diamondback Barrels

COLT EPR UPPER KIT 5.56 11.5" BLK

Colt's Manufacturing

COLT M4 UPPER 5.56 11.5" LW BLK

Colt's Manufacturing

COLT EPR UPPER KIT 5.56 14.5" BLK

Colt's Manufacturing

COLT LE6921 UPPER 556NATO 14.5"

Colt's Manufacturing

CMMG BBL BCG KIT 8" 9MM 4140CM SBN

CMMG

CMMG BBL BCG KIT 5" 9MM 4140CM SBN

CMMG

CMMG BBL 5.7X28 10.4" PS90

CMMG

CMMG BBL AND BCG KIT 5" 5.7X28MM

CMMG

CMMG BBL AND BCG KIT 8" 5.7X28MM

CMMG

CMMG BBL 300BLK 8" 4140CM SBN

CMMG