The Vintage Ordnance guns aren't even shootable as shipped. I assume this is to avoid lawsuits
From their website:
These are not shootable as shipped. The firing pin hole has to be drilled out.
Though our reproduction is sold as a firearm and exceeds the mechanical strength of the original through the use of superior materials and vastly tighter chamber and headspace tolerances, WE STRONGLY ADVISE CUSTOMERS NOT TO FIRE THE PISTOL. During production in 1942, several examples were taken from the assembly line to test under repetitive fire. Reports indicated that after 50 rounds of service ball ammunition the testers felt the weapons were no longer safe to fire. They were simply never designed handle a steady diet of powerful .45 ACP. They were made to fire ten rounds. They are what they are.
The original FP-45 is a clever and efficiently designed weapon but it has never received any accolades for operational safety. Once it is loaded, the only safe way to handle it is with the zinc cocking piece turned fully 90% to the right or left so that the rear corner of the pistol’s grip frame will prevent it from rotating into firing position. If the cocking piece is re-aligned and the guide pin inserted through the hole in the cover slide as illustrated in the original instructions, THE PISTOL IS COCKED AND READY TO FIRE. IF DROPPED IN THIS STATE, IT COULD EASILY DISCHARGE CAUSING INJURY OR DEATH. Some worn original guns will have no mechanical means to hold the zinc cocking piece securely in the safe 90 degree position because the bottom of the firing pin boss is worn off from repetitive careless scrapping across the steel frame. There is no safe way to handle these pistols. A loaded pistol should never be un-cocked by lowering the zinc cocking piece when it is aligned in firing position. To do so would place the firing pin, under spring pressure, directly on top of the primer of the chambered cartridge. IF THE PISTOL WAS JARRED OR DROPPED IT IS HIGHLY LIKELY TO DISCHARGE.
In light of the above mentioned facts relating to the relative safety of the FP-45 in general, we will not drill the firing pin hole completely through the cover slide. Therefore, our reproduction as shipped is technically incapable of firing and significantly safer than the original pistol. WE STRONGLY ADVISE OUR CUSTOMERS NOT TO TAKE THEIR DREMEL TOOL AND A 1/16” BIT AND DRILL THE FIRING PIN HOLE THE REST OF WAY THROUGH BECAUSE THIS WILL RENDER THE PISTOL FULLY OPERATIONAL. VINTAGE ORDNANCE IS NOT LIABLE FOR INJURY OR DEATH RESULTING FROM PURCHASERS MODIFYING OUR PRODUCT IN THIS UNAPPROVED MANNER.
