FX 30 cal Hybrid will not fit in FX magazine.

 







Here is a pic of 30 cal dreamline mag it has a slot milled out will this work?

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I think it would be best if you would get it from another manufacturer. That's precisely what I did, and I don't regret it one bit. It might fit a little looser or tighter, but it will still be reliable. FX probably made a mistake in the Impact design by not allowing more room in the magazines for longer slugs. I got a new one from https://elementarmament.com/product/aero-precision-lower-parts-kit/, and it works just as well. Even if it's a little tight, it's better than nothing. I don't think they were planning on 30 and 357 slugs for it.