LEGO MOC J-1 Proton Cannon by MindBrick | Rebrickable - Build with LEGO
LEGO Star Wars 501st Clone Troopers Battle Pack (75345) CANNON BUILD ONLY | eBay
LEGO® Republic AV-7 Anti-vehicle Cannon set 75045-1 Lego - Etsy
Amazon.com: LEGO Star Wars Clone Turbo Tank (8098) : Toys & Games
Amazon.com: LEGO Star Wars 501st Clone Troopers Battle Pack 75345 Toy Set - Buildable AV-7 Anti Vehicle Cannon, 4 Minifigures, Spring Loaded Shooter, Clone Squadron Collection, Great Gift for Kids Ages 6+ :