I don't belive you will find Factory mags under $38
if you ask for 15 or 15 rounders I assume you got a 9mm... so here it goes
Earl's...$40 for LEO marked 15 and 16 rounders.... if you want preban ones they are $100 ......
CDNNcurrently don't have any 15 rounders for the 9mm though they have 12 eounders for $38
There is other places... you just have to look.. but I doubt unless CDNN has some for sale you will find them for less than $40 per mag
ummm on another thought, allglock had 5 16 round mags for sale ... see if he is still willing to sell them