I got the idea of a Colt/Oly style hybrid after I screwed the SOCOM block into the receiver.

I chopped the SOCOM ($60) and used it as the filler block then I had the mag catch slot milled out at the local machine shop ($25). The mag catch is a one piece milled out of steel, very strong.  I bought it from a board member after he had a few made for a similar project he had abandoned ($15).  
The whole thing works great and I haven’t had any function problems, works just like a standard mag catch.
The only thing I would have done differently is use roll pins instead of machine screws to pin the block in.  I would have had a different block made, but the SOCOM was already a proprietary type of setup so I couldn’t have a new filler block w/o running into screw alignment problems.  
I don’t know if it was cost effective compared to simply getting a Colt style, but it was still a fun project, not to mention it is an original!

Before…


After! The catch is still in the white. I have to get it parkerized.

Boom!  Man that looks great!  I'm glad it all worked out so nice.  If my Colt-style project fails, I will no doubt go the way you did.

[party]

Did you simply graft 2 sections of mag catch together to get the extra length?

Lets add a spin, reduce the thickness of the rear block, and make a front  block, looks like a possible way to feed the Colt pattern again, seeing the other block set is "lost" somewhere....

Its all one piece (steel).


I considered that too, but since Olympic feeds from the front portion of the mag well I went with what works.  If I had my Own mill I would have created a two block set just to try it.

Yes, sweet.


By the way, who had the longer mag catches made?  I might want one or two, for "parts"....


I wonder if your notch for this matches up w/ the notches in the Colt notched Sten mags I have?  I guess it all depends on the Oly bolt and how it positions the mag.


An Oly 10mm has been fed w/ a Colt type block.  The front was modified heavily, but it worked.  They used 41 cal Uzi mags w/ the modifed block to feed the 10mm.  So in theory, a two peice block can feed an Oly.

But you had fun doing the project, that is the important thing!!!!

I bought it from Corvus, and IIRC he bought it from the guy who made a small batch of them.

Circuits has done the same thing with a 9mm Oly, and I'm doing the same thing right now with my Oly 9mm, as a prelude to one in .45ACP.  That's why I had the spare mag catch to sell to Boom_Stick!  [:D]

Well guys I am Glad to see my mag catch worked.  If I had more time I would mill up some more. But I am busy building a semi 50bmg Hyperdel right now.  I still need to finish my Sten lower, but time is the major issue. If people are really interrested in the Mag catches email me and If there is enough interest, say 10 or so I will make up a batch.

Your mag catches rule!  My application changed slightly, so I will probably end up not using them, BUT, I could very well end up using them as well, depending on how my project fares.



A WHAT?   TELL ME MORE TELL ME MORE!!!!!

If you dont use 'em let me know, I'll buy another one! [bounce]

They're built like a tank but it's always good to have an extra especially since they're proprietary.

Corvus The Hyperdel has some AR15 parts so I will say it is still on topic.  Here is the website  http://www.hyperdel.com/

I'll take an extended mag catch if anybody has an extra one.  Thanks