Compact/Carry 9mm Barrel - Black 3.9 is rated 4.7 out of 5 by 6 .

Rated 5 out of 5 by Peter 19 from 2nd to none I bought this barrel a month ago fits great and the brands speaks for itself very satisfied!

Rated 5 out of 5 by SPECTRE from Great System The Sig modular pistol pistol fulfills my pistol requirements for a broad range of CCW options. I highly recommend the P320 for this purpose.

Rated 5 out of 5 by R. Holliday from Sig Sauer Excellence! Sig came thru again. Always meets the mark for quality.

Rated 3 out of 5 by Black Nation from Does the barrel have the loaded gun indicator? Most of the barrels don’t seem to have the cutout for the indicator.