This is currently the BEST Mobile Bullet Trap option for up to 9 mm caliber ammo. It offers a quick, safe setup and deployment.
It is made from steel for exceptional durability, and UNLIKE others it includes a ballistic rubber panel positioned in front of the steel cage that will entrap most pellets and slow down the other calibers enough to be then stopped completely by the back-plate with minimum impact, hence the reduced noise and also lead dust.
UNLIKE others, this trap is completely enclosed so the potential lead dust will be mostly trapped inside instead of polluting the environment! Also, UNLIKE others, the armor steel back-plate can be easily removed to be replaced or upgraded to a thicker plate or just removed to access and retrieve the bullet fragments inside cage.
Note: In order to achieve an better overall seal for the steel cage, jamming the backplate in place using an metal L bracket is recommended.