This insert fits LE M/17,17L,19,26 and for the 10 round magazine M/17,17L,19,26,34. Mags have square notch at top rear. Part number 35 on the Glock Schematic.
Ordered this product when i went to the states this moth. May 2017 i had it addessed to my godbrothers house in 3 days i had this product.. Now im back in the Phils.. this products fist just right to my glock magazines.
Bought this together with the the extended springer precision red base pad for my glock 17 since I stripped the stock mag insert on mine (I bought this as a replacement part).