Review: 40580 Blacktron Cruiser | Brickset: LEGO set guide and database
Invader - LEGO set #6894-1 (Building Sets > Space > Blacktron I)
After digging through a box of gifted LEGO for hours and only one piece of the instruction booklet left, I finally completed this. 6894 Blacktron Invader : r/lego