Found this in a small box of parts , it has no markings, appears unused, 65BAEF29-B36C-4A4E-B4E3-6DD3790D47CB.jpg78D3CD80-6352-49C1-A0D3-77314146D938.jpgcan anyone help with identification , barrel with it is a high standard3BFC97B2-F622-49C3-B34E-DAF6B82C6AA2.jpg8E1FEE52-4E9F-48C3-8889-73E16BE807DE.jpg