Installation of the Buckmark Slide Racker requires machining and threading of the slide. Your slide will be permanently modified to accept this slide racker. You will have to remove your slide from your Buckmark per Browning owners manual and ship only the slide to me. (DO NOT SHIP THE WHOLE GUN or FRAME). I normally install these same day, but please allow 5 days in case of back log. NO STAINLESS SLIDES. For stainless slides select the stainless slide installation service.