5 grooves in a P3 barrel?

[tshan]

First AR build and I was looking at the barrel I was sent and after counting 3 dozen times... no doubt about it 5 lines inside. Am I just confused or shouldn't the P3 barrel have 3? It wouldn't surprise me at all if this is a dumb question as I'm pretty new to this.

[GLSHOOTER]

Yep. Three is three not 5. They have done some 5's in the past. I'd give em a call to settle the mystery.

Greg