I seem to recall DangerCo was planning on doing another run of R51 triggers, sometime in 2020. 

Their website shows these are out of stock.  Has anyone heard any news about this?

Has anyone see a misalignment between the slide and frame (see pics in attachments below). 

If so, can you tell me what is going on?

Using a set of calipers, I am measuring the space between the lips on the r51 magazine. 

Width, very back of magazine:  .351

Width, middle of magazine, front of lips before they roll away to the sides:  .338

I think this is revealing as to why the bullets have a tendency to nose dive.

Because the rear of the magazine lips is wider than the front, the rear of cartridge will set higher in the lips and flatter, in other words, more parallel to the slide and barrel.

Because the front of the lips pinch the approximate middle the cartridge, it causes a pivot point at the approximate middle of the cartridge.

The slide pushes the cartridge from the top rear of the casing.  The pivot point is roughly the top center of the cartridge.  This causes the front of the cartridge to dip down.

I have modified one of my magazines so that the numbers above are about reversed.  With dummy cartridges, it loads perfectly almost every time.

Thanks DangerCo!

I'm heading to the range tomorrow!

This picture shows a modified and original R51 follower.

Short story:  The stock follower is too long to provide enough clearance to close the slide on a full magazine.   The shorter follower provides this clearance.  You could probably get by with trimming you followers much less than this; however, these magazines work.

Although this has been covered elsewhere on the forum and is kind of old news;  I am providing a picture for clarity.

Here I am!

David McGinnis
Sierra Vista, AZ


(No silly, that's an R51 in my pocket)