[2] The Millennium line was designed to contend in the civilian concealed carry firearms market, and to be sold as backup weapons for law enforcement officers.

Without admitting guilt, the company paid $39 million, extended the warranties, and recalled the pistols for repair.

Magazine capacities vary between 6, 10, and 12 rounds depending on model and caliber.

Together these safeties are intended to assure that the pistol will not fire if it is accidentally dropped.

The 2nd series resulted from a complete redesign of the 1st, but retaining the double-action only trigger system.

The 2nd series also introduced the 'Taurus Security System' (TSS), the Taurus version of an Integrated firearm locking safety system, as well as the enhancements Taurus categorizes as the Millennium ‘Pro’ package.

[8][self-published source] The Millennium Pro pistols offer many improvements over the standard models, but were introduced as enhancements to the originals, not to supplement them.

Some features of the Pro line include optional increased magazine capacities, larger and easier to operate controls, a single-action/double-action trigger mechanism on some models with reduced trigger travel and an improved smoother and lighter trigger pull, an enhanced frame, and an improved more ergonometric grip design.

Other Pro improvements include the contrast enhanced Heinie ‘Straight-8’ sighting system, as well as optional night sights, a loaded chamber indicator which can be felt as well as seen, and a feature labeled 'posi-traction' which consists of an alteration to the number and layout of the slide serrations resulting in an improved gripping surface.

[3][9] In early 2013, Taurus introduced a new G2 model to the Millennium pistol series.

The G2 features stippled texturing on the grips, replaces the slide retainer pin with Glock-style pulldown tabs to disassemble the firearm.

The optional final hyphenated number at the end of the model designation (either a -10 or -12) indicates an extended magazine capacity.

Thus the model number 111BP-12 would indicate a 9 mm Millennium Pro pistol in blued steel with a 12-round magazine capacity, while model 138SSP-12 designates a .380 stainless steel Millennium Pro with a 12-round capacity.

Double-action only (DAO) and a DA/SA version, compact frame, Heinie sights with 'Straight-8' rear.