Installation Instructions for Ruger Mark Series Mounts
Category Info
Screw/Thread Standards for Red Dot Sights
Introduction With every passing year more and more red dot sights become available on the market. Unfortunately many manufacturers do not make it obvious what screws are available with their optics. If you have some information that you would like…
Torque Information
Recommended torque values for optic mount hardware. 6-48: 10 in/lb 6-32: 7 in/lb M4: 10 in/lb M3: 7 in/lb If threadlocker is used reduce torque by 25%.
Ruger Mark Series and 22/45 Thread Locations
The Ruger Mark II, III, and IV rimfire pistol series comes standard with three 4-48 threaded locations for optics mounting. Factory models come either with picatinny rails or with threaded plugs if no rail is included from the factory. Some…
What’s a Solvent Trap and is it Legal
A solvent trap is a tool used to catch cleaning fluids used during the process of cleaning out the bore of a firearm. Solvent traps are designed to catch and hold potentially harmful or messy fluids in a series of…
10/22 Receiver Thread Dimensions
The standard Ruger 10/22 Reciever has four threaded holes on the top of the reciever designed to mount optic rails for scopes, red dot sights, or other accessories. These threaded holes are spaced out unevenly and threaded in #6-48 which…