Not sure. They are very close. I used the rt pro rail as a template, and then measured the centers of the grip frame and the rail to get it there. I also measured off the center of the rear frame screw hole to get the holes to line up. The problem I ran into is that it was difficult to get the frame secured well enough to drill the front hole. No matter how much I braced it or clamped it down it still flexed forward as I brought the bit down on the press. That and the drill bit tended to gravitate towards the existing hole. I ended up just elongating the old hole and creating a slot instead of two holes. I imagine someone with more patience and experience could easily drill a second hole. Boring out the hole for the rail bushing was simple. Other things to consider:
1. The trigger return spring and rear travel set screw at the top of the angel trigger do not have a stop as the slot for the sear lines up with them. I'll probably put a small spacer between the frame and rail to fix this. Again this frame is not ideal for the job, but the angel trigger itself will be nice to work with.
2. The sear rod has nowhere to go. You could not expect to use mech mode with an angel trigger or frame. I will probably get a second sear to modify for attaching to a solenoid.
3. There are no doubt a host of other tolerance issues that modifying the frame will introduce and have to be addressed.
4. It was all I had available. Excepting my working intelliframe which I refuse to destroy so I can still have a good frame to play with.
1. The trigger return spring and rear travel set screw at the top of the angel trigger do not have a stop as the slot for the sear lines up with them. I'll probably put a small spacer between the frame and rail to fix this. Again this frame is not ideal for the job, but the angel trigger itself will be nice to work with.
2. The sear rod has nowhere to go. You could not expect to use mech mode with an angel trigger or frame. I will probably get a second sear to modify for attaching to a solenoid.
3. There are no doubt a host of other tolerance issues that modifying the frame will introduce and have to be addressed.
4. It was all I had available. Excepting my working intelliframe which I refuse to destroy so I can still have a good frame to play with.
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