With apologies to the late Lt.Col. Cooper the Bren 10 folks went belly up before they got going and what shipped lacked magazines. My only experience was with a M1911 Delta Elite and it was stout. My LGS guy has carried a Glock off/on he swears its tolerable. I had a large all steel S&W .45 one of the TSWs. Accurate, large and heavy, probably a good platform for the 10mm but I found it too heavy for CCW use.