The legacy of the Colt Government Model® is well known. From the battlefields of Normandy, to the jungles of Vietnam, this combat proven firearm has tirelessly served our Armed Forces for more than a century.
This pistol features the legendary Series 70 firing system, making it a faithful reproduction to Government Models manufactured prior to World War II.
This pistol also features an arched steel mainspring housing and a short steel trigger. A standard safety lock, standard grip safety and spur hammer complete this authentic throwback to Colt semi-automatics of days gone by.
The Colt Series 70 guns were introduced in 1971. Colt introduced the first major design change to the Government Model in nearly 50 years and in an attempt to improve the accuracy of production guns the barrel bushing was redesigned, along with the barrel.
In this system the bushing utilized four spring-steel “fingers” that gripped the enlarged diameter of the muzzle end of the barrel as the gun returned to battery.
By tightening the fit of barrel and bushing in this manner Colt was able to improve the accuracy of the average production gun, without going through the expense of hand fitting the older solid barrel bushing to the barrel and slide.
Models using the new barrel/bushing setup were the Government Model and Gold Cup, which were designated the “Mark IV Series 70″ or simply Series 70 pistols.
It should be noted that the shorter 4 1/4″ barreled Commander pistols retained the use of the older solid bushing design and thus were never designated Series 70 pistols, although one hears the term erroneously applied to Commanders from time to time.
The new “collet” bushing (as it came to be known) worked quite well, however it was prone to breakage if the inside diameter of the slide was too small as it caused the fingers to buckle, then later break from the stress of being wedged between the barrel and slide.