from L & R. Hawken style breech plug features a traditional short stud, 1/2" long. Breech and tang come fitted together and require only surface finishing before installation into your barrel. Tang is 5" long. Must be drilled for touch hole. Available 3/4-16 threads for 1" barrel No. 41210 or 5/8-18 threads for 15/16" barrel No. 41310