BACK IN STOCK:
40mm Insert

• Allows use of 20ga shotshell type ammunition when inserted into chamber of 40 x 46mm grenade launchers & destructive devices.
  
• Precision machined in the USA from solid billet aluminum
• Hardcoat anodized to MIL-A-8625 Type III Class 2.
• Comes in at 9.1oz
  
• ALL NFA rules & regulations apply.

Not recommended for use with 20ga slug or magnum ammunition.

Made in USA