Pextax DSLR's with AA Batteries....: Pentax SLR Talk Forum: Digital Photography Review
Amazon.com : Pentax D-BG4 Battery Grip for Pentax K-7 K-5 K-5ii K-5iis Digital SLR : Digital Camera Battery Grips : Electronics
Amazon.com : DSTE Replacement for Pro D-BG4 Vertical Battery Grip Compatible Pentax K-7 K-5 K-5ii K-5iis Digital Camera as D-LI90 : Digital Camera Battery Grips : Electronics
Pentax K-3 Review - Tech Info
Pentax K-50 Blue with Brown Grips Digital Camera With 18-55mm F/3.5-5.6 DAL AL WR Black Lens (52) {16.3MP} at KEH Camera