Standard size Gen 3 locking block. Electroless Nickel Plating and tested with 10,000 rounds. These locking blocks will fit and function perfectly. 

Compatible with all frames that require a "Three pin" Gen 3 Glock 19 locking block.  This is a direct replacement for Glock Part #1447

MADE IN USA 🇺🇸

We donate to charity 🙏 for this item.