Volquartsen Bolt Stop

thingiverse

For a Ruger 10/22 equipped with an aftermarket Volquartsen bolt, firing suppressed can be made even quieter by keeping the bolt closed during action. This reduces both mechanical noise and forces expelled gases to exit through baffles. A device that braces the frame to the charging handle keeps it shut during firing. After firing, you must manually remove this magnetic device, charge the weapon, replace this device, and continue firing. It's designed to keep your hush gun extremely quiet at a cost of speed. This small device has two 6x2mm cylindrical cavities for embedding craft magnets. I'm using these: https://smile.amazon.com/gp/product/B07CVPC3YJ This is currently a prototype and still being tested. The main difference between a standard Ruger bolt stop and this Volquartsen specific one is the length required. The Volquartsen needs 40mm in length while the generic Ruger one requires 43mm. When slicing gcode, set a filament change at the top layer that magnet cavities are exposed (Prusa Slicer - unsure of others). Once you export your gcode, open it in a text editor and search for "M600" (instructions for a filament change). Since we don't care about removing filament and re-feeding, you may optionally comment this out with a preceding ";". What was: <pre> M600 </pre> Will become: <pre> ;M600 G1 X10.000 Y100.000 E0; parking position M1; user stop M105; return to current temp </pre> Once the printing pauses, insert one or two magnets and resume printing.