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Thread: help on EP Automag using Dye UL PM5 Frame

  1. #1
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    help on EP Automag using Dye UL PM5 Frame

    Hi All,

    So I'm trying to build my second EP mag using a Pm5 UL frame and I'm having trouble fitting the RAM in between the frame and rail. There's a 1/4 inch of the ram sticking out so it prevents the rail from sitting there. Has anyone built one of these frames, and how did you make it fit using the stock pm5 board. I could go utb, but I prefer to keep the stock board. As always, any help will be appreciated. The picture below is built by kenjay on mcb.

    -Brandon

    RerEzl.jpg

  2. #2
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    Can you mill a pocket in the rail where the ram protudes?

  3. #3
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    Problem is now the bottom part of the sear will hit the ram and won't release the bolt. I don't know if I have to cut the sear a bit.

  4. #4
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    Sounds like pics are in order.

  5. #5
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    Ok, here's the picture. As you can see, I'm using an AM rail and the sear is in "firing position", which is the furthest the ram will extend. However, the sear will hit the ram. Unfortunately, the magnet and trigger will prevent me from putting the ram any further down the grip. Any advice? If there's a shorter ram, I'd be truly happy, but I don't think there's anything out there.

    IMG_0108.jpg

    Thanks,
    Brandon

  6. #6
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    Yeah, doesnt really look like there is the kind of room you need in that frame with the stock board. Think you might be screwed.

  7. #7
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    Only thing I can think of is adding a spacer rail. I have no idea how the guy was able to fit his ram into there using the stock board.

  8. #8
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    Maybe try contacting him here or on MCB. He is a member of both. Also might be worth contacting the guy he sold it to and maybe he can get you some pics of the internals.

  9. #9
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    Spacer rail is the only real way unless you have a thicker custom rail

  10. #10
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    Quote Originally Posted by renie View Post
    Spacer rail is the only real way unless you have a thicker custom rail
    I would think so too, but the pic from Kenjay it doesnt look like it.

  11. #11
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    Quote Originally Posted by OPBN View Post
    I would think so too, but the pic from Kenjay it doesnt look like it.
    http://www.mcarterbrown.com/forums/e...omag-sale.html

    He had a PM5 frame and board, are those different from the UL frames?

  12. #12
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    Quote Originally Posted by Spider-TW View Post
    http://www.mcarterbrown.com/forums/e...omag-sale.html

    He had a PM5 frame and board, are those different from the UL frames?
    Good catch. Not a clue.

  13. #13
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    I remember El Panda's armada mag (mech semi) with the UL frame looked very narrow at the top there.

    But yeah, there's the end of my DM/PM knowledge.

  14. #14
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    Quote Originally Posted by Spider-TW View Post
    But yeah, there's the end of my DM/PM knowledge.
    >mine.

  15. #15
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    your frame is to far forward your ram is to big and you wont fit it all in there with that board.

  16. #16
    I am also unsure if the differences between the UL frame and the stock frame would be an issue. It's very possible that the grip and trigger were re-positioned for that frame. Not to mention it's a UL frame which means a lot of extra space and material have been removed. Anyways, I do see a couple of other issues. It doesn't look like the threads have been machined off of the ram to reduce the overall length. Also, I did have to machine parts of the trigger to make room for the ram as well. I believe this eliminated the spring; the trigger force was dependent on the magnet and microswitch. Obviously the sides of the ram had to be machined/filed down to fit inside the frame AND I believe I had to machine the top side of the ram as well to allow room for the sear. Do you plan on placing a right angled air fitting on the back of the ram? I also had to machine a slot in the side of the trigger frame to route the hose back to the solenoid.

    I still haven't found the cell phone pic I took of the internals. But I did find this video that I made of the marker dry firing: http://www.youtube.com/watch?v=YBlCBjfWbfA

    Hope this helps a bit!
    Ken

  17. #17
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    Ok thanks all. Looks like a spacer rail or custom rail is needed. Speaking to Renie to see if he can make it happen

  18. #18
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    No spacer rail and its ep

  19. #19
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    whoa, $5 to show me the grip internals?

  20. #20
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    IMG_0111.jpg


    Picture there, I haven't done any modifications until I know it can fit. If I move the frame back, then the sear will move forward...how does the ram fit backwards?

  21. #21
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    IMG_0114.jpg

    Thanks to Superman. He was able to position the ram vertically where the return magnet used to be. It's pretty tight fit -I'll have to shave the ram quite a bit so I have enough room leftover for the magnet. Looks like I won't need the spacer rail after all. Thanks for all who reviewed my thread. This is why I love AO. I'll update this thread once I'm done.

    Thanks,
    Brandon

  22. #22
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    Can't see how the MPA3 will manage to trip the sear in that position? Looks like the ram piston will be hitting the sear at the wrong angle. The Ultralite frame you're using is smaller than original DM & PM series frames. The Ultralite's a lot narrower at the top of the grip, and that's why it needs different shape grip panels. It's also why you found a lot less room to fit the EP components inside. I've seen at least one other EP mag conversion using an Ultralite frame, and that one used a spacer in between rail and frame.
    Last edited by GEE TEE; 02-13-2013 at 06:28 PM.

  23. #23
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    You're right, I think I have two choices now: use a UTB board or spacer rail. But Renie isn't taking custom work due to school... I dont want to get a utb if I don't have to.

  24. #24
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    im running a UTB and its still tight. just so you know it is not and easy feat.

  25. #25
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    So Renie is making me a spacer rail about 6mm so it should work. However, I hate the 90 deg elbow adapter, it's too big. Do you guys know of any low profile ones? Here's the pic:


    <a href="http://www.flickr.com/photos/80587492@N07/8534456332/" title="IMG_0179 by livebrando, on Flickr"><img src="http://farm9.staticflickr.com/8248/8534456332_9ba0d53de6.jpg" width="500" height="375" alt="IMG_0179"></a>

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