mutt
06-04-2013, 18:29
I finally had a chance to try this thing. Awesome! Requires no mods to the lower (like cutting coils off the bolt catch spring) and there's no need to tune or tinker with it to get it to work. My old CMMG BHOA adapter took a lot of tinkering to get working and even then it wasn't 100%. With the Better-Mag adapter you just drop it in the lower and go. The bolt holds open on the last shot every time. I ran about 15 mags through it and never had a failure to lock open on the last round. If you want to revert back to using standard ceiner-style mags, all you do is remove the adapter.
Only caveat is your lower's mag well needs to be in spec since the adapter goes inside the mag well. The Olympic Arms lower that I normally use with my .22lr upper seems to be out of spec (imagine that) and the Better-Mag adapter would not fit inside. Good thing I have other lowers. Stock up on 25 round M&P 15-22 mags while you still can!
http://www.redi-mag.com/images/products/detail_52_BMA_II_3.jpg
http://www.redi-mag.com/index.php?l=product_detail&p=52
Only caveat is your lower's mag well needs to be in spec since the adapter goes inside the mag well. The Olympic Arms lower that I normally use with my .22lr upper seems to be out of spec (imagine that) and the Better-Mag adapter would not fit inside. Good thing I have other lowers. Stock up on 25 round M&P 15-22 mags while you still can!
http://www.redi-mag.com/images/products/detail_52_BMA_II_3.jpg
http://www.redi-mag.com/index.php?l=product_detail&p=52