Precision machined in the USA from solid billet aluminum and hardcoat anodized to MIL-A-8625 Type III Class 2.
Allows use of 20ga shotshell type ammunition when inserted into chamber of 40 x 46mm grenade launchers & destructive devices.
ALL NFA rules & regulations apply.
Not recommnded for use with 20ga slug or magnum ammunition.
Made in USA