Looking for Sig Sauer Gun Parts? We have them. Sig Sauer Takedown Levers are a part that plays an important roll in accuracy and the longevity of your Sig Sauer pistol. A sloppy fit between your takedown lever and locking insert can decrease accuracy and even cause damage to your gun if it is not spotted and repaired early. The battering between the locking insert, takedown lever and barrel will damge the frame rails as well as many other parts. Be safe and have your Sig Sauer checked out by a Certified Armorer every 5000 rounds or once a year. Keeping your gun maintained will keep it reliable and running well.