Originally Posted by pacrimguru
sorry, just saw your question. i had to play with my ejector for the c products mags to run right. once i found the sweet spot they fed and cycled rounds correctly. my bolt hold open function isn't doing so great right now though. it barely keeps open but wants to slam closed any chance it gets. its just a matter of adjustment.
Thanks, good to know. Am thinking about undertaking a 9mm build myself, but I value a good bolt hold open function greatly (already have an AR-57, which has no last round bolt hold open, only due to my possibly illogical interest in the 5.7x28 round) so am still on the fence. I might give the Spike's Tactical 9mm magwell block a try, since they built it with an adjustable ejector.