Valuable upgrade - LANTAC ESP-S Ultra Smooth Glock Safety Plunger/Spring

TL;DR: this is now my standard in all my glocks. I’ve tried stock, “polished”, and aftermarket vendors. The challenge is consistency with uniform finish, and a hard exterior to prevent burrs, scratches, etc that can be the cause of a rough or catchy trigger. This module has the most uniform surface I’ve seen and so far, and the trigger action is smoother (using with Timney Glock Trigger). The price is reasonable and they are available, so this is now a standard for my Glocks.