Theses barrles are no longer ported. You should received a non-ported barrel when you order this.
Barrel - Ported V1 on the Tippmann A-5 Basic Diagram v2 2009-08-06Barrel - Ported V1 on the Tippmann X7 Photographic Large Diagram
Barrel - Ported V1 on the Tippmann X7 E-Grip Diagram 2007-11-26
Barrel - Ported V1 on the Tippmann X7 RT Diagram