Most beaver tails for leather work are veg tanned just like the hides used for holsters and saddles on a regular basis. Same "shelf life" once tanned and takes dye and burnishes just like the underlying leather they are being applied to. Convenient for work just like ShortBBL is doing here!
Sheridan Leather carries the tanned beaver tails. I can get the phone number if you'd like to have it, ShortBBL. No online store front. They sell them in everything from small up to extra large for varying prices. Medium, I believe, was $15 last time I ordered from them. Could probably do those two inlays with a medium tail and have just a little left over. That converts to about $40 per square foot, so NOT a cheap upgrade on that holster and mag pouch ;)
Nice looking stuff.
Epoch