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Edward Tinker · 04-27-2009, 09:26 PM

I am pretty sure it is 4mm ammo for training, such as the Erma 22 single shot barrel adaptors.

04-27-2009, 09:26 PM	#2
Edward Tinker Super Moderator Eternal Lifer LugerForum Patron Join Date: Jun 2002 Location: North of Spokane, WA Posts: 15,966 Thanks: 2,066 Thanked 4,595 Times in 2,116 Posts	I am pretty sure it is 4mm ammo for training, such as the Erma 22 single shot barrel adaptors.