Mossy Oak branded duck decoy weights from Amazon. They're 9" long and 6 oz each, broke two in half. Much better than my PRC-152 battery as a counterweight.
https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

Stitched into a TNVC MK2 pouch (reserved for when ABNV wants to start offering LEMO conversions for first gen RNVG's. I used to own the MK1 pouch and like how low profile the lead weight pockets were.