BudsGunShop.com - Taurus Security System

A transfer bar is also used in revolvers and certain exposed hammer rifles, but works the opposite way from a hammer block. The transfer bar has the spur that would otherwise be on the hammer or encloses a firing pin similar to autoloading designs. As you can see from the diagram, the hammer itself cannot contact a loaded cartridge or the firing pin, but must instead strike the Transfer Bar when it is in the Up position with hammer cocked. The transfer bar is normally positioned out of line with the hammer’s travel, but is moved into place by the normal action of the trigger, providing similar “drop safety” to a firing pin block. Here is a picture - https://prntscr.com/ka6irn

It is simply a key lock system on the revolver that locks the action from being used Stephanie. A picture of lock and key is here : google.com/search?q=taurus+revolver+security+lock&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj45PTn4rbcAhWOTN8KHTe5AScQ_AUICygC&biw=1280&bih=618#imgrc=M_MwrlOkSX0YhM:

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Hi Stephanie, This will tell more about the Transfer Bar Type Safety System -- Scroll down to #6 -- usacarry.com/handgun-safeties-types-characteristics/

Hi Stephanie, This includes the Transfer Bar Type Safety System. he Taurus model 66 revolver is a longtime favorite of security personnel and is ideal for home defense. This .357 Magnum medium frame revolver holds 7 shots and features a comfortable soft rubber grip. It has a fixed front sight, adjustable rear sight, and a custom Single Action/Double Action trigger for improved speed and accuracy. The 66 is perfect for target shooting or self defense wherever trouble lurks. A reliable and affordable Taurus 66 is an excellent choice for the legally armed citizens. Whether you're new to firearms and looking for your first gun, or an experienced shooter needing a good solid revolver for your collection, the Taurus 66 will serve you well for years to come!
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Specifications & Features:
Taurus Model 66 Double Action Revolver 2-660049 --
.357 Magnum (also accepts .38 Special and .38 Special +P Rounds) --
4" barrel --
1:16.5" twist with 6 grooves --
7 Rounds --
Medium Frame --
>>>>>>>>>>Transfer Bar Type Safety System --
Double Action/Single Action Operation --
Fixed Front Sight --
Adjustable Rear Sight --
Soft Rubber Grips --
Stainless Steel Frame --
Stainless Steel Cylinder --
Overall Height 5.68" --
Overall Width 1.5" --
Overall Length 10.5" --
Overall Weight 38oz --
Matte Stainless Steel Finish