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Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Mon Apr 18, 2016 9:21 pm
by McVickers
ronin677 wrote:In relation to the conversion, I'm a bit unsure of how to fill the converted mag. Do you fill from the feed hole (ie back down into the hipcap mechanism?)


No, due to the ratchet mechanism, it's very bad practice to force BBs back down the feed tube of a high-cap mag. Most high-cap mags have a small hatch which can be opened to pour BBs into the high-cap's reservoir.

Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Wed Apr 20, 2016 9:58 pm
by ronin677
Got it sorted. I misread the OP's first comments. If I am correct, he temporarily lifts the mech out of the mag housing to fill the bb's :)

Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Sun Sep 18, 2016 6:48 am
by Lord Elpus
Read this with great interest, already bought King arms 110 rnd mags, but did do a quick conversion on a src mp40 mag to fit my agm mp40, pulled it apart turned round all the guts, a little bit of "fettling" on re fit, now have hi cap mag on hand,.....don't like it much, lots of "wheelie winding" prefer the 110's.

Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Sun Feb 10, 2019 4:34 pm
by Flippy
Nice guide!

I'm on repairing an old AGM Mp40 and want to cold blue the receiver and two magazine shells.

The upper magazine cap won't get off... how did you make it??? I won't broke it.

Thanx!

Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Sun Feb 10, 2019 9:18 pm
by Flippy
OK! I removed the buttom plate, and using a metall saw blade removed the upper cup, :happydance: :happyclap:

Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Mon Feb 11, 2019 3:45 pm
by Harborne Blue
ronin677 wrote:Sorry to drag up an old thread but needs must when a guy needs mags for his MP40.

In relation to the conversion, I'm a bit unsure of how to fill the converted mag. Do you fill from the feed hole (ie back down into the hipcap mechanism?) I am about to order a couple of Uzi mags and want to be 100% sure of what I'm doing. I'm sure I can complete the conversion but like to certain before I start chopping things apart

thanks


When I made mine many years ago, I used to push on the feed wheel to lift up the mag internals. This created enough clearance to feed BBs in and if you use rugged glue, aluminium tubing and care, the mag will not break.

I don't think that the Uzi mag tops will be of any use - mine weren't. I'd planned to dremel a hole in the mag that would fit the end of a speed loader in but never got around to it. I figured that if I drilled down into the back of the mag at 45d it would create enough of a lip to stop BBs leaking out in-game.

Re: AGM MP40 Magazine conversion to hi-cap.

Posted: Sun Oct 27, 2019 7:43 pm
by slick63
After all this time it looks like a manufacturer has finally brought out a 300 round hicap for the AGM MP40 .... https://www.weekendwarriorsairsoft.co.uk/index.php?_route_=ufc-mp40-hi-cap-magazine-300rds-agm-sandt-m12a