Running a RRA 9mm upper with a RRA mag block. What mags are you guys using and having good luck with?
What is the difference between the bottom loading Hahn and the top loading one, besides how you insert them into the lower? btw, thanks for the above info.
Top loading will not hold the bolt open on the last round. Pro's and cons to both. The top loader will never come out unless you want it to. The bottom loader could possibly come out.
Josh has built way more guns than me, but I had problems with my Hahn bottom loader, kept coming out with the mags. Switched to a RRA and haven't had a problem since. C-Products mags and mag blocks are junk IMO. Spikes/Metal Form mags have also been problem free although pricey.
Are you just using Spike's/Metalform? I don't/can't spend $40 a mag.
I prefer the dedicated Hahn block. It's technicaly the top loader but it is held in place with your bolt catch pin so it won't move. Bolt hold open works also. You can get a RRA to work, I just hate their setscrew attachment. It allows for too many variables. The metal promags are very good just super hard to find. I've had good luck with the plastic ones too justsometimes you'll get one that swells a lot and you can't fully load it and be able to insert it in the magwell.
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