LEGO Fire Stone Mech 71720-1
LEGO Fire Stone Mech (71720-1) is estimated at about $120 sealed as of Oct 2026 (retail $85). Retired 2021 · 968 pieces · 2020 Ninjago.
Cool Ninja toy with 5 figures and a mech for battle action
- Set number
- 71720-1
- Theme
- Ninjago
- Subtheme
- Master of the Mountain
- Year
- 2020
- Pieces
- 968
- Minifigures
- 5
- RRP
- $85
- Market value
- $120 (Estimate, Oct 2026)
- Used value
- $49
- Released
- 2020
- Retirement
- Retired in 2021
Minifigures in LEGO Fire Stone Mech
LEGO Fire Stone Mech at LEGO: release to today
- Nov 9, 2026: Retired at LEGO Poland
- Nov 9, 2026: Retired at LEGO Sweden
- Nov 7, 2026: Retired at LEGO Ireland
- Nov 6, 2026: Retired at LEGO Spain
- Nov 6, 2026: Retired at LEGO France
- Nov 6, 2026: Retired at LEGO UK
- Nov 6, 2026: Retired at LEGO Netherlands
- Nov 6, 2026: Retired at LEGO Germany
- 2020: released
What LEGO.com showed, checked daily in the US and eight European stores.
What you are paying for
Its 5 priced minifigures are worth about $23 together, roughly 20% of the set's value — low for Ninjago sets, so the value is in the sealed set rather than the figures (typically 44%).
Frequently asked questions
How much is LEGO Fire Stone Mech (71720-1) worth?
LEGO Fire Stone Mech is worth approximately $120 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Fire Stone Mech retired?
Yes — Fire Stone Mech (71720-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Fire Stone Mech gone up in value?
Yes. Fire Stone Mech launched at $85 and now trades around $120, an increase of 41.1%. See the price history chart for how it got there.
What is the price per piece for Fire Stone Mech?
At its $85 retail price across 968 pieces, Fire Stone Mech works out to about $0.088 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Fire Stone Mech a good investment?
Fire Stone Mech currently trades 41.1% above its $85 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Fire Stone Mech so expensive?
Fire Stone Mech was released in 2020 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.