Traust Position Bag
Traust
Fits the purpose
excellent also for magnum revolvers
Very lightweight but still offers a stable support.
One if the best I've used. It's easy to adjust the fill, just remove stitching of inner bag and Velcro closed.
Locally made in Colorado, these are the best bags made, hands down. I've dragged them everywere through everything. Not a single problem. Money well spent.