Glock OEM locking block for current full size 3 pin models.
Fits:
M17,17L,34 (current 3 pin models, mid 2002 and later)
M20.20SF,21,21SF,Ambi 37 (fits current models only, mid 2002 and later)
M22,24,31,35 (fits current models only, mid 2002 and later)
Part number 19 on the Glock Schematic.
