For sale: Tubb SpeedLock Systems Firing Pin and Spring Remington 700 Short Action. Like new in box. My buddy had this in his rifle for 5 shots, and then did a custom bolt... $50 shipped. SpeedLock Systems Firing Pin Spring Remington 700 Short Action I personally have this in my rifle too, it's awesome! It helps with the trigger pull along with advertised decreased lock time. Any problems, their customer service is TOP NOTCH! Thanks.