Invader (6894-1) is a Blacktron I LEGO set released in 1987 with 159 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Blacktron I sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 2 minifigures and 66 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1987 (39 years ago — may be retired)
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Catalog scale
159 parts listed · 66 inventory lines tracked
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Minifigures
2 in this set's inventory — verify completeness when buying used
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~263 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Minifigures in Invader
Parts in this set
66 parts · page 1 of 2 · updating…
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Antenna 1 x 4 with Rounded Top3957a · ×2 · Trans-Red -
Bracket 2 x 2 - 2 x 23956 · ×1 · Black -
![Bracket 3 x 2 - 2 x 2 [aka Space Seat]](https://cdn.rebrickable.com/media/parts/elements/4107108.jpg)
Bracket 3 x 2 - 2 x 2 [aka Space Seat]4598 · ×1 · Light Gray -
Brick 1 x 13005 · ×2 · Black -
Brick 1 x 23004 · ×4 · Black -
Brick 1 x 2 with Yellow Down Arrow and Black Border Print3004pr9983 · ×1 · Black -
Brick 1 x 33622 · ×2 · Black -
Brick 2 x 2 Corner2357 · ×2 · Black -
Brick 2 x 43001 · ×1 · Black -
Brick Round 1 x 1 Open Stud3062b · ×2 · Black -
Brick Round 2 x 2 with Axle Hole3941 · ×1 · Light Gray -
Brick Sloped 45° 2 x 1 with Bottom Pin3040b · ×2 · Black -
Brick Sloped 45° 2 x 23039 · ×2 · Black -
Brick Sloped 45° 2 x 2 with 12 Buttons, 3 Red Lamps, Yellow Panel Print3039pr9995 · ×1 · Black -
Brick Sloped 45° 2 x 43037 · ×2 · Black -
Brick Sloped 45° 3 x 4 Double / 33°4861 · ×1 · Black -
Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin3747a · ×2 · Black -
Brick Sloped Inverted 45° 2 x 13665 · ×4 · Yellow -
![Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]](https://cdn.rebrickable.com/media/parts/elements/366024.jpg)
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×4 · Yellow -
![Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]](https://cdn.rebrickable.com/media/parts/elements/366026.jpg)
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×8 · Black -
Brick Special 1 x 1 with Headlight4070 · ×6 · Black -
Brick Special 2 x 2 with Pin and No Axle Hole4730 · ×4 · Black -
Brick Wedged, Sloped 4 x 4 Taper with Blacktron I Logo Print4858pr0001 · ×1 · Black -
Hinge Brick 1 x 2 Base3937 · ×1 · Black -
Hinge Brick 1 x 2 Top Plate Thin3938 · ×1 · Yellow -
Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs4276b · ×4 · Black -
![Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs]](https://cdn.rebrickable.com/media/parts/elements/427526.jpg)
Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs]4275b · ×4 · Black -
![Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]](https://cdn.rebrickable.com/media/parts/elements/6102782.jpg)
Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]73983 · ×4 · Black -
Hinge Tile 1 x 44625 · ×1 · Black -
Hinge Vehicle Roof 4 x 44213 · ×1 · Black -
Hinge Vehicle Roof Holder 1 x 44315 · ×1 · Black -
![Panel 1 x 2 x 1 [Square Corners]](https://cdn.rebrickable.com/media/parts/ldraw/46/4865a.png)
Panel 1 x 2 x 1 [Square Corners]4865a · ×2 · Trans-Yellow -
![Panel 1 x 2 x 1 [Square Corners]](https://cdn.rebrickable.com/media/parts/elements/486526.jpg)
Panel 1 x 2 x 1 [Square Corners]4865a · ×2 · Black -
Panel 3 x 3 x 6 Corner Wall with Blacktron I Logo Print2345pr0005 · ×2 · Black -
Plate 1 x 13024 · ×6 · Black -
Plate 1 x 13024 · ×2 · Trans-Green -
Plate 1 x 104477 · ×2 · Yellow -
Plate 1 x 23023 · ×6 · Black -
Plate 1 x 23023 · ×2 · Yellow -
Plate 1 x 43710 · ×3 · Black -
Plate 1 x 63666 · ×2 · Black -
Plate 2 x 103832 · ×2 · Black -
Plate 2 x 23022 · ×2 · Yellow -
Plate 2 x 23022 · ×6 · Black -
Plate 2 x 23022 · ×2 · Light Gray -
Plate 2 x 33021 · ×1 · Yellow -
Plate 4 x 103030 · ×2 · Black -
Plate 4 x 43031 · ×1 · Black