Unlike ordinary products on the market, our switch is made of Stainless Steel or Aluminium Alloy according to the real technical drawings. Process: Precision-CNC Machining,For Glock /17/18/19 Sear. Please allow slight difference due to manual measurement and a little color variation for different display setting. Item Processing Time: The processing time for a specific order varies with the product type and stock status. Mostly, processing time can be 3 to 5 working days. You may have to fill seer angle a bit more smooth and notch out a little on poly mere handle very easy it works wonderfully..syi