Mark I bolt stop
Moderators: Bullseye, Moderators
Mark I bolt stop
Has anyone tried to rethrofit a Mark II Stop Bolt bracket and a Bolt Release bracket in a Mark I frame? It looks like minor modification to the frame may be possible.
Yes it has been done with success on an A-100 framed Mark I/Standard. It takes a few cuts to make the bolt release cut and the mag follower slot has to be extended. The toughest part is drilling the front lug for the bolt stop plunger. Some folks have come up with a piano spring device for this function. Here's one that's been modified.
R,
Bullseye
R,
Bullseye
I did some more modifications as follows and it seems to function OK now.
As I could not drill the receiver dovetail I modified the Bolt Stop Bracket to accept a small spring. A slight offset prevented the spring from hanging up on the frame as can be seen in the photos.
As I could not drill the receiver dovetail I modified the Bolt Stop Bracket to accept a small spring. A slight offset prevented the spring from hanging up on the frame as can be seen in the photos.
________________________________________
Bob
Bob
-
- New member
- Posts: 11
- Joined: Thu Mar 22, 2007 9:26 pm
- Location: Washington State
Great idea!
Great idea on the spring bpratl ! I've done two conversions; one with a factory style plunger, and one with a thin spring wire milled into a slot in the top edge of the hold open gizmo.
I built a drill jig to precisely drill for the factory parts, but that will only work on certain frames; can't recall which ones exactly. Your idea with the coil spring is the easiest yet that I've seen. Thanks very much for sharing it, as I have another MKI to convert one of these days, and I will likely use your method.
Great job! Joe
I built a drill jig to precisely drill for the factory parts, but that will only work on certain frames; can't recall which ones exactly. Your idea with the coil spring is the easiest yet that I've seen. Thanks very much for sharing it, as I have another MKI to convert one of these days, and I will likely use your method.
Great job! Joe