Just wanted to share how well the custom cups that MegaSexual kindly made to my measurements, to fit the new KP-15 polymer lower, came out. I am quite pleased with them, thanks again for making these custom items! Additional photos can be seen here.
@MegaSexual I'd like an ambi set to fit one of my KP-15s, what are you asking for these KP-15 custom cups? (And what's different about them? I thought the lower was designed to take standard Magpul QD sockets.) Might be willing to order two sets to make it worth your time depending on the cost.
Bought a couple ambi sets for my KP-15s and installed a pair yesterday, they fit great! Really happy with them, I highly recommend these over the really disappointing KE Arms QD cup (it doesn't limit rotation, and they don't make an ambi one...and it's more expensive with tax and shipping).