I have an Iota Krux for sale inletted for a sendero proof. I am unsure if the bottom metal is BDL or M5. I bought it with the intention of dropping a CA ridgeline into it. After a year of sitting on my reloading bench it just needs to go. I am happy to measure any specs with digital calipers for potential buyers. The previous owner told me it was BDL but wasn't 100% so I'm being honest if that a deal breaker. He had a Wyatt's bottom metal and mag in it. Stock is in near perfect condition and I installed a new seekins precision rail a few months ago. It's a $500.00 stock. I'll let it go for $315.00 shipped. It's light and stiff. You won't be dissapointed.