Wikia

“	A weapon favored by Viper. This sub machine gun is crafted with top of the line materials, allowing her to remain agile and deadly during elite missions.	”
	— Item Description

Viper's P90TR is an Submachine Gun introduced in the 11-16-10 Update.

Overview

This gun is 'modified by Viper' for her personal use. A silver colour is featured on its rail and handle, and the magazine is coloured orange rather than yellow. A 'slithering' snake is featured from the tip of the suppressor to the end of its stock.

This weapon features increased damage, portability, and accuracy compared to the P90TR. Viper's P90TR is also capable of holding up to 60 rounds per magazine, 10 more than any other P90 variant.

Variants

Variants
GP Standard	P90
GP Rare	P90 SE
NX Standard	P90TR
NX Rare	P90TR SE
Epic	Viper's P90TR
Festive	P90TR CBS (Europe Only)

Trivia

This is the 3rd Mercenary ultimate weapon to be released, the first two were the Baron's M416 CQB and Mei's MP7 MOD.
It is the first Mercenary weapon to belong to a Specialist.
On the suppressor features a snake about to bite, going along with Viper's snake theme.
This is the first Mercenary Custom weapon to not feature an "Epic" symbol, although this may be a mistake.
Like Scorpion, Viper's custom weapon hadn't been engineered previously, which is why it had no previous appearance in a cut scene or trailer.
Instead of having 50/50 rounds per magazine, this gun has 60/60.
There was a typo in its "Epic"-Tag which has been fixed on the 12/15/10 update.
Before the release of this weapon, several players speculated that a custom P90TR would be owned by Deckland (since he wielded one in many of his poses).