A Guide to Blank Fire Guns WP0 Bruni 5 1/2" Peacemaker, 9mm blank fire. WP1 Uberti 5 1/2" Peacemaker, 9mm blank fire. WP2 Pietta Colt 1852 Sheriff Navy - Blank Fire WP3 Uberti 4 3/4" Peacemaker, 9mm blank fire. WP4 Remington 1858 - Blank Fire WP5 Pietta 5 1/2" Peacemaker, 9mm blank fire. WP6 Jager 5 1/2" Peacemaker, .22 blank fire. WP 7Pietta Colt 1851 Navy - Blank Fire WP8 Engraved Colt 1851 Navy Sheriff- Blank Fire WP11 Pietta Colt 1851 Navy - Blank Fire WP12 Pietta Colt 1860 Army - Blank Fire