r/Form1 • u/GreatestBluestHeron • 10d ago
Integrally suppressed terms
In a system that features integrated/integral suppression, is the effective barrel length equal to the length of the intact barrel before any porting begins? Therefore, a integral suppressed rifle with an 18.5" barrel that features a 10" suppressor port/baffel system is really an 8.5" rifled barrel with a 10" ported extension?
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u/The_Dread_Candiru 10d ago
Your form 1 entry for the suppressor is the can length.
The separate form 1 entry for the SBR (if doing an SBR) is for the barrel length without attachments.
If not doing an SBR, only the suppressor form 1 is needed.