LEGO MOC 501st BattlePack by iprice | Rebrickable - Build with LEGO
Miniaturized the 501st ATRT (inspired by one from clone turbo tank) : r/legostarwars
LEGO 501st Legion Clone Troopers 75280 Building Set (285 Pieces) - Walmart.com
LEGO Star Wars 75002 501st AT-RT Review! (2013) - YouTube
Amazon.com: LEGO Star Wars 501st Legion Clone Troopers 75280 Building Kit, Cool Action Set for Creative Play and Awesome Building; Great Gift or Special Surprise for Kids (285 Pieces) : Toys & Games
Lego Star Clone Wars 75002 ATRT AT RT AT-RT WALKER 501st Legion Clone Yoda NISB | eBay