Quote History Quoted:
Most of mine are metal feedlip. I tried the M&P mag thing but could never get it to run right. The best BD mag is the 32rd and with a binary trigger they're awesome.
View Quote
OK, this helps. I've spent the afternoon on youtube and forums investigating the Better Mag thing, and it seems like there are lots of problems. Won't go in the lower without sanding corners to a more round shape, edges are sharp and cut you on install, mags don't drop free, and I'd have to take it out when putting a 5.56 upper back on the lower. Plus, it's $50 bucks.
S&W 15-22 mags are 20$, which is the same price as the 25-round BDM mags. So no savings there. The spring hold-down feature is nice, but with a McFadden loader (which is way less than the $50), the BDM mags would load in a flash.
Plus the 32-round BDM mags have the hold down, so there you go. Those mags are $30 at BDM. That $10 increase can be paid 5 times with the $50 I don't spend on the Better Mag adapter.
If the lack of LRBHO bothers me, then a Catch-22 bolt catch is a lot less than $50. Of course, that is an installation as well, and something that needs to be taken out if I go back to a 5.56 upper, so that's a wash with the Better Mag.
First world problems.
I would still like to hear any and all opinions.