Hawkins has BDM for detachable mags for both the Lone Peak Medium and the Defiance XM. My buddy and I both did Lone Peaks and we ended up getting the BDL for when we wanted more of a flush feel and BDM for mags for the rest of the time. Neither of us have put the BDLs back on and we have been mag feeding them for almost a year now... even in hunting situations. (I would have to look at my notes when the BDM's came for the Lone Peaks, but I am ""guessing"" August or September of `18).
So Lone Peak vs. Defiance is tuff. I am partial to the Lone Peak as they are local here and just good guys to work with. AND my first custom action was a Defiance and so I am partial to it to. My Defiances and Lone Peaks all shoot better than my abilities... and both are phenomenal quality. I don't' think you could go wrong with either! Same with Manners VS McMillan.... both are great!