What is the status of unloaded or dummy grenades, artillery shell casings, and similar devices?
Unloaded or dummy grenades, artillery shell casings, and similar devices, which are cut or drilled in an ATF approved manner so that they cannot be used as ammunition components for destructive devices, are not considered NFA weapons.
Source ATF: https://www.atf.gov/firearms/qa/what-status-unloaded-or-dummy-grenades-artillery-shell-casings-and-similar-devices
Other NFA Gun Trust and ATF Related Blog Posts
ATF e5320.20 Requires Approved NFA Firearm
The newly released ATF e5320.20 has been significantly helping speed up approvals and it brought back the option for coordinates. However, the ATF e5320.20 can't be used for all NFA Firearms. It ...
What is the Difference between Void and a Withdrawal request?
Per the ATF eForm's FAQ, "A 'VOID' is requested when the Form has already been approved, but no transfer, Making, or Manufacturing has occurred. A 'Withdrawal' is requested when the Form is still p...
ATF eForm 5320.20 Walk-Through Guide
How to guide and walk-through guide for the ATF Form e5320.20 – ATF e5320.20 Application to Transport Interstate or to Temporarily Export Certain National Firearms Act (NFA) Firearms Step By Step W...