whatnickname
Member
I’ve accumulated just about all the parts I need to assemble a Ruger MKII 22 Pistol in stainless steel with the exception of the bolt. Seems like just yesterday you could find all the MKII parts you ever wanted. Not so today. Went on line at E-bay and purchased a MKIV bolt that was advertised to run in the MKI, MKII & MKIII that the seller advised would require “some fitting”.
Upon examination of the MKIV bolt there are a few minor differences between this bolt and the bolt out of the MKII. Underneath side of the bolt that picks up a round out of the magazine is flat on the MKIV. The MKII bolt out of one of my other pistols has a small raised area right up at the face of the bolt that picks up rounds out of the magazine. The long milled section on the side of the bolt is rounded at either end on the MKIV bolt where the forward edge on the MKII bolt is angled on the end closest to the bolt face. Most notably, the forward edge of the bolt that engages the bolt hold-open piece in the receiver is angled at about 45 degrees on the MKIV bolt whereas this part on the MKII bolt is ground down flat at 90 degrees. Dropped the MKIV bolt in my other MKII pistol and performed a function check. Seems to function just fine.
What modifications do I need to make on the MKIV bolt to make it run in my MKII pistol?
Upon examination of the MKIV bolt there are a few minor differences between this bolt and the bolt out of the MKII. Underneath side of the bolt that picks up a round out of the magazine is flat on the MKIV. The MKII bolt out of one of my other pistols has a small raised area right up at the face of the bolt that picks up rounds out of the magazine. The long milled section on the side of the bolt is rounded at either end on the MKIV bolt where the forward edge on the MKII bolt is angled on the end closest to the bolt face. Most notably, the forward edge of the bolt that engages the bolt hold-open piece in the receiver is angled at about 45 degrees on the MKIV bolt whereas this part on the MKII bolt is ground down flat at 90 degrees. Dropped the MKIV bolt in my other MKII pistol and performed a function check. Seems to function just fine.
What modifications do I need to make on the MKIV bolt to make it run in my MKII pistol?