Wanting to build a 40S&amp;W, but parts are all First off, yes, I understand that 40 is not the most respected caliber around here, and no I’m not a .40 cal guy. I just have a shit ton of .40 laying around due to a family member giving me a box of about 1,000 rounds of it. I feel more inclined to build on a .40 platform because of it.

The main problem I’m having is I can’t find any parts for this caliber l, specifically barrels. I think I have found maybe 1 or 2 BCGs in that caliber, and plenty of listings for barrels that are OOS or discontinued (I’ve been searching more for barrels, so I’m sure there is more). 

My question is, should I just go ahead and stop looking and build off 9mm, or is .40 actually a feasible option and my timing is just unlucky with these parts?

Personally don’t mind if I have to switch so I won’t argue what caliber is better, but I would prefer .40 if possible. Thanks 😃