10.5" blank fire barrel is modeled after the WWII Thompson Sub-Machine gun barrel.
A short barrel permit is NOT REQUIRED for installation.
Blued steel barrel in the correct profile for the M1928 Thompson SMG.
Includes:10.5" blank fire ribbed barrel, 2 restrictor screws, roll pin, 1/8" drill, Loctite, ATF blank fire barrel approval letter
Professional barrel installation provided by Ravenna Armory or Michael Hane Gunsmithing.
Produced for us by Howell Arms.
The ATF approval letter should remain with the gun.