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AR magazine well adapter for 9mm in 5.56 lower

Wambli SkaWambli Ska Posts: 5,453 Senior Member
I have a dedicated 9mm AR, BUT I also have a registered SBR and it would be cool every once in a while to converted it into a range toy by putting my Shorty 9m upper on it.  Of course it's a 5.56/.223 lower and I've seen some adapters that sit inside the mag well and accept Glock or old style 9mm AR mags and that has made me curious.  My only experience with them was an old Stag Arms 9mm pistol I bough many moons ago and it used old style mags and reliability was atrocious so I ended up selling it because it was so frustrating to deal with.  Have they gotten any better?  Does anyone here have any experience with those?

It’s a °IIIII° thing 😎


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