"Lyman Products Corp. (“Lyman”) is voluntarily recalling black powder rifles and pistols due to the potential of separation in the breech plug. Lyman maintains a safety-first approach, so despite finding only a few firearms affected and no reported injuries, we are offering a recall program to have the issue corrected. Lyman regrets the inconvenience but remains committed to the safety of our customers."

More details at the Lyman website:

https://www.lymanproducts.com/recall/