Bastion 4 Pin Kit For Glk Gen4 Sts

The Bastion 4 Pin Kit for Glock Gen4 STS is a precision replacement pin set designed specifically for Gen4 Glock models 17–41, excluding the model 36. This kit addresses a critical maintenance need for operators and armorers managing Gen4 platforms, providing essential components to replace factory pins that may wear or become lost during field operations.

Each kit includes four essential pins: a trigger housing pin, a locking block pin, and a trigger pin, all machined from corrosion-resistant stainless steel for extended service life. The stainless steel construction is crucial for shooters operating in environments where standard blued pins may deteriorate, such as salt-air coastal duty or high-humidity climates.

This kit serves pistol armorers, law enforcement departments managing Gen4 duty weapons, competitive shooters performing routine maintenance, and tactical trainers conducting high-round-count courses. It is designed to ensure compatibility with the Gen4's modular grip configuration, accommodating OEM small, medium, or large back straps.