Do not follow user manual instructions - SightMark ReadyFire LW-R5 Red Laser Sight

If you happen to buy one of these things DO NOT follow the torque specifications in the User Manual. Pagé 5 of the User Manual lists mounting screw torque specifications of 45 to 65 inch pounds. Tightening the mounting screw to less than half of the specification will result in brass nut in the mounting plate pulling out and causing damage your firearm as it did mine.
The Sightmark or Sellmark people are aware of this problem and will not assume any responsibility for consequential damages to your firearm caused by following their own instructions.