Does Nightwing have a bulletproof suit?

Nightwing Suit: Nightwing's current costume is made of a version of the Nomex fire-resistant, triple-weave Kevlar-lined material. It is an excellent protection against damage, and it's also electrically insulated. Instead of a black cape for stealthing, the suit is light sensitive, darkening when there is more light in the area. The current costume, a stylized blue "wing" across his shoulders and extending to his hands, coloring his two middle fingers, over a black torso and legs. Nightwing's costume is tailored specifically to his unique style of crime-fighting. As such, his costume has fewer body-armor inlays than Batman's, anticipating a decreased need for shock-absorption and an increased capacity for motion. ("Move more, get hit less.") A caveat of this configuration can be exploited by capable fighters who are both fast and strong, such as Superman. Should Nightwing need to engage an enemy who is capable of exploiting this weakness, he has supplemental body-armor overlays which he can attach to his gauntlets, his mask, his shoulders, and boots. 

Nightwing Mask: The mask, in the form of his symbol, is fixed in place with spirit gum, and includes a built-in radio transmitter/receiver and Starlite night-vision lenses. 

His gauntlets and boots each contain eight compartments in which he can store items. They have a self-destruct feature built into them, similar to the ones in Batman's utility belt, and, as another security measure (especially when the hero is unconscious), the suit contains a one-use-only taser charge, which automatically emits a high-voltage electrical shock when someone attempts to tamper with either the boots or gauntlets. 

Nightwing Gauntlets: Each gauntlet's sections can contain a wide array of equipment, such as: 
sonic or smoke pellets, 
modified batarangs ("Wing-Dings"), 
knockout gas capsules and throwing tracers. 
The right gauntlet is also equipped with a: 
100,000-volt stun gun. 
Nightwing Boots: Like the gauntlets, his boots can carry vital elements like: 
flares, 
a rebreather as protection against any airborne noncontact toxins, 
a mini-computer equipped with fax, modem, GPS and a minidisk rewritable drive. 
Other items are lock picks, a first aid kit, a mini-cellphone, flexi-cuffs, antitoxin assortment, signal flares, wireless listening devices and a small halogen flashlight. 

Held in spring-loaded pouches in the back of his costume, Nightwing carries a pair of Escrima sticks made from an unbreakable polymer that are wielded as both offensive and defensive weapons. Some depictions have displayed these tools with the mechanism to shoot a grappling hook attached to a swing line (like Daredevil's billy clubs), while, in other instances, he is seen using a "line gun" like the one Batman currently uses.

Direct from DC vault: yes his suit is bullet proof enough to stop Armor piercing rounds, but a depleted uranium round will shoot right through him.