RetiredUniversal Building Set
Basic Set
#5771981
LEGO set 577 from the Universal Building Set theme, released in 1981.
396pieces
2minifigures
7+Age
No price
Retired set — check the secondary market
Tech Specs
- Set number
- 577
- Theme
- Universal Building Set
- Release year
- 1981
- Release
- 1981
- Official LEGO piece count
- 396
- Minifigures
- 2
- Age
- 7+
- Status
- Retired
- Retail price
- No price
For collectors
Key information to help you decide whether to add this set to your vault.
Set scale
Medium set
396 · Official LEGO piece count
Minifigures
2
Universal Building Set
Parts data
391 · Inventory parts recorded
Full catalog data available — 66 unique part types.
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No price
Retired set — check the secondary market
📦 Retired — available on secondary market
Minifigures
Collectible figures in this set
Set inventory breakdown
Parts recorded in the inventory file (may include spare parts). This is separate from the official LEGO piece count.
391
Parts recorded
66
Unique
107
Combos
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