Thaillen Posted February 20, 2020 Share Posted February 20, 2020 Hey all, Does anyone know if the upper from a 1.0 will fit on a 2.0 lower? I'm looking to try to add a rail to my MP9 for a light. Thanks, Josh Link to comment Share on other sites More sharing options...
Benevolence Posted February 25, 2020 Share Posted February 25, 2020 From what I’ve read (mostly on this forum), it seems that they’re compatible with possible issues for slide lock back. I’m not sure if the increased frame rail (that the slide interfaces with) length interferes with side travel but I do not believe so Link to comment Share on other sites More sharing options...
incogneato Posted April 1, 2020 Share Posted April 1, 2020 On 2/20/2020 at 3:02 PM, Thaillen said: Hey all, Does anyone know if the upper from a 1.0 will fit on a 2.0 lower? I'm looking to try to add a rail to my MP9 for a light. Thanks, Josh It works fine, but if you want to be able to slingshot the slide, you will need to install a 1.0 slide stop. Link to comment Share on other sites More sharing options...
FightFireJay Posted April 1, 2020 Share Posted April 1, 2020 Any chance a "1.0" could be converted to an M2.0 with a seat housing block and appropriate trigger/sear components? https://www.midwestgunworks.com/page/mgwi/prod/3006369 Link to comment Share on other sites More sharing options...
recoilchamp Posted April 4, 2020 Share Posted April 4, 2020 This youtube video says it'll work, but you'll need to replace the slide stop if you want to be able to sling shot the slide: Link to comment Share on other sites More sharing options...
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