06-11-2014, 12:50 AM
I have just parted with a 20" BHW upper and had no problems. I have a 24" bull that has been around for a while 5-600rnds with previous owner and another 5-600 with me and no issues at all with the bolt. I was going to sell my spare bolt after theBHW went away but checked my 24" and it is a type I . I guess I will keep it just in case or buy another barrel and build a newb.

