AR 9mm adaptor

[WorksEveryTime]

The great thing about endo mags is that you don't lose the ability to quick change calibers. Just swap the complete upper and mags and you're good to go under 30 seconds. That's pretty dang nice imho.

I also swap the buffer / spring in the buffer tube when swapping 9mm and 556 uppers. But I agree that it's still a snap to switch. The Endomag is still running great and after break in, I'm finally able to run just regular 115gr target rounds instead of the pricier NATO9. That was a good day...

 

[RobertinElkCity]

I used a Hahn 9mm adapter and it worked very well. The first one experienced a problem after a few years of use and they told me to send it in, then they sent me a BRAND NEW one in return. Excellent customer service.