Dedicated .22 AR uppers to avoid with BDM magazines?
I've been using BDM magazines successfully for quite some time with my Ciener drop-in conversion it. Now that I'm in the market for a dedicated .22 AR upper, are there any name brand .22 AR uppers that I should avoid in regards to compatibility with my older and now the updated BDM magazines. Thanks...
The new CMMG Evolution Uppers with BHO don't seem to work well without
modifying the BDM Mags for the new Bolt Hold Open Springs and Followers.
