In Wrath of the Lich King it is item level 252 and requires level 80. In MoP Classic it is item level 252, requires level 80 and sells to vendors for 1c.
5.0 DPS, +7 Agility, +15 Critical Strike. World Drop
250 goldon 44 realms
Creeperclaw Crossbow has the highest item level here (40). The lowest listed price among them is Lava Bolt Crossbow at 5 silver in the US Auction House.
Next item levels up from Furious Gladiator's Repeater among Weapon > Crossbow: Honorguide Crossbow (item level 100) and Burnished Arbalest (item level 226).
Items Numbered Next to Furious Gladiator's Repeater
Blizzard numbers items as they are created, so the named items next to ID 45939 (45934 to 45945) were usually added in the same batch as Furious Gladiator's Repeater: the same quest line, zone, vendor or reward set.