SIG SAUER P320 3.9" Black Nitron for Sig P320 Carry/Compact

Sig Sauer P320 Compact Barrel 9mm Luger 3.9" Black

Sig Sauer P320, P250 Subcompact Barrel 9mm Luger 3.6" Black

Sig Sauer Replacement Barrel for Sig P320 - Reliable Black Upgrade - BBL-MOD-F-357

Sig Sauer P320, P250 Full Size Barrel 9mm Luger 4.7" Black DLC

Sig Sauer Replacement Barrel for Sig P320, Gold - 8900789

Sig Sauer Replacement Barrel for Sig P320 - Reliable Black Upgrade - BBL-MOD-C-40

Sig Sauer P320 Full Size Barrel 40 S&W 4.7" Black DLC