I just received a butt plate from Brian at JB3D. The 3D printing is of very high quality, smooth and uniform not some of the rough gnarly work. I've a K&L on the SK19 that was around 150$ if I remember correctly. I put a SKP on the K1 in .177, cast aluminum, heavy, spent a couple of hours drilling holes in it to lighten it, around 261$. The butt plate from Brian was around 67$. His service is phenomenal , lost the first one in the mail, when alerted to the fact he had a new one made and shipped within a day. Shipping from the UK took 10 days. I suspect Customs played a part in the time. I highly recommend his butt stocks.