Are you looking for SBR barrels? K-Var has your back. Need SBR upper receivers? We've got you covered there, too. Many gun owners turn to SBRs for personal defense and competitive shooting, drawn to the small form factor for tight quarters and portability. Our SBR barrels and upper receivers can get you the build you need. We carry manufacturers you can trust, including Daniel Defense, Sig Sauer, Diamondback and Primary Weapons Systems. For SBR upper receivers and barrels, look no further than K-Var.