LoneStarWings
Member
- Joined
- Jan 27, 2009
- Messages
- 445
I'd get a 9mm conversion barrel for your M&P 40. I just did and am pretty happy with the results. As far as I know, the only difference between a stock M&P 9 and 40 are the barrels and the 9 slide being about half an ounce lighter (and magazines), but the difference isn't enough to adversely affect function as far as I can tell. It's one of the upsides to the m&p, other types of pistols have different extractors and ejectors which make the conversion barrels a little less reliable, I think.