Rival Arms Extended Slide Lock Compatible With for Glock Gen3/4 Stainless Steel The Extended Slide Lock, By Rival Arms, Allows You To Field Strip Your Pistol quickly And Easily With Stainless Steel Slide Lock (Take Down Lock) That Is easier To Grip And Wont Chip, Wear, Or Break. Type: Slide Lock Model: Extended Slide Lock Material: Stainless Steel Finish: Stainless Steel