The CBG Building Blocks Handgun Set offers an engaging construction experience with 528 precision-engineered pieces that assemble into a functional model capable of shooting plastic projectiles.CBG Building Blocks Handgun Construction Set528 durable building block piecesShoots plastic projectile blocks with realistic actionIncludes 5 plastic projectile blocksUnique Technic Bricks Design for enhanced building experienceRecommended for ages 12 and upDurable construction built to lastPerfect for recreational building enthusiasts who enjoy detailed construction projects with interactive functionality combining the satisfaction of assembly with engaging play features.