I have had my MantisX and DryFireMag (DFM) for about a week and 250 ‘shots’. So far they have met all of my needs, I am happy with the purchase.
The only complaint I have is not with the DFM, it is my Glock 19 Gen 5 and the half moon hole in the mag well. It is yet another issue with Glocks short lived half moon.
There is no flare on the cutout, so the DFM pin wont slide in and allow the magazine to seat. You have to manually push the pin in until it is passed the half moon cutout. Then it will slide into position and work like a champ.

This is not an issue with other Glocks as the magazine wells are flared.

Just give it a good push, follow the instructions and you are in business.
When I use the MantisX with the Dry Fire Mag I want to leave my light on and train as I carry. I would also like to use all my existing holsters for holster drills. To accomplish this I made a base plate with a built in Picatinny rail to mount the MantisX on.

It is easy to install. Slide off the factory plate. Dont worry there are no springs that will pop out or parts that will fly. Slide on the new one.
Then Clip on the MantisX
Train.
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