screwdriver or ½” wrench

You need a long sleeve tee that looks professional and works as hard as you do

Full flap with hidden single snap closure on each pocket to secure mags

This structured visual system supports safer instruction

and finished with a Type III hard-anodized coating for long-lasting performance

Ring's BlueGuns M4 Standard, Open Stock | FSM4 COLOR:Black screwdriver or ½” wrenchIntroduction to Rings M4 Standard Blue Training Gun Rings Manufacturing, a pioneer in firearm simulators, brings to the market the M4 Standard Blue Training Gun, a tool crafted with the highest fidelity to aid in effective training. With a legacy spanning several decades, Rings Manufacturing has earned a stellar reputation among civilian, law enforcement, and military circles. Their Blue Guns series represents a significant breakthrough in training