Arin's Spinjitzu Battle Mech

Lego^® NINJAGO 71839 Arin's Spinjitzu Battle Mech

Name: LEGO® NINJAGO Arin's Spinjitzu Battle Mech 71839
Brand: LEGO
SKU: 71839
Availability: InStock

Current best price

LEGO 71839 is currently available from £16.88 incl. shipping at Zatu Games. 6% below RRP (£17.99). 6 retailers compared.

View the deal at Zatu Games Compare all 6 offers

Updated 2 November 2026 at 01:37

LEGO® NINJAGO Arin's Spinjitzu Battle Mech 71839 (1/10)

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Lego 71839 price comparison: where is it cheapest?

Prices incl. shipping to the UK · Prices updated 2 November 2026 at 01:37

Zatu GamesBest price

£16.88

£13.89 + £2.99 shipping

Save 6%!

Toy Street

£16.88

£13.89 + £2.99 shipping

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information

The Lego set Arin's Spinjitzu Battle Mech with the set number 71839 is part of the LEGO NINJAGO theme and is recommended for ages 7+. It was released in June 2025. It includes 2 minifigures. The model has 213 pieces, and we estimate it takes around < 1 hour to build. 38 Brickfact users have this set in their collection.

The set weighs about 0.315 kg. The box measures 19.1 x 26.2 x 6.1 cm. The recommended retail price is £17.99.

Our Brickfact Lego price comparison compares the prices of 6 shops for this set. It is currently cheapest at Zatu Games for £16.88 including shipping. That is £0.08 per piece. With this offer you save £1.11 off the recommended retail price, a discount of 6%.

If you buy the set from the official Lego store, you also earn 144 Insiders points. You can exchange them for vouchers for future purchases.

The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about £26.80. You save around £9.92 if you buy the complete set at Zatu Games instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 1.59: the Part-Out-Value divided by the current best price on Brickfact.

Lego 71839 product data

Set Information

Set ID

71839

Theme

NINJAGO

Pieces

213

Building Time

< 1 hour

Age Range

Minifigures

Availability

Release

06/2025

Retiring Status

Retiring Soon (12/2026)

Price Information

RRP

£17.99

Insiders Points (for purchase at Lego)

144

Part Out Value

£26.80

Packaging

Weight

0.315 kg

EAN (GTIN13)

5702017815725

Lego 71839 price history: how has the price changed?

Brickfact has been recording retailer prices since 12/10/2026. Best price so far: £16.88 (7 days ago).

Current best price: £16.88 -6% vs. RRP
Best price since 12/10/2026: £16.88 -6% vs. RRP · 7 days ago

Lowest price per retailer (since 12/10/2026)

Since 12/10/2026, Zatu Games was the cheapest on 15 of 22 recorded days.

Retailer	Current	Lowest price	Date
Zatu Games	£16.88	£16.88	02/11/26
Toy Street	£16.88	£16.88	02/11/26
eBay	£16.99	£16.99	01/11/26
Hamleys.co.uk	£17.99	£17.99	02/11/26
Lego.co.uk		£21.94	02/11/26

As of: 02/11/2026, 00:41 UTC

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

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Popularity with Brickfact users

users have this set: 38
buyers in the last 12 months: 35

38 Brickfact users have Arin's Spinjitzu Battle Mech in their collection. 35 users bought it in the last 12 months.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 1 November 2026.

Lego 71839 market value

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value: £11.82
Market value vs. RRP: −34.3 % £17.99
Range: £10.64 – £12.59
Average: £11.71

Loading price history…

Minifigures from 71839 Arin's Spinjitzu Battle Mech

The Arin's Spinjitzu Battle Mech set includes 2 different minifigures, 1 of which are unique to this set. The combined value of the minifigures is £5.57, which is ~31% of the RRP of this set.

Arin - Shirt with Magenta Dragon, Hair, Bandana

NINJAGO

2025

#njo0972

£2.11

Unique

Spectral Dragonian Warrior

NINJAGO

2025

#njo0973

£3.46

2 sets

Official Set Description for LEGO 71839 Arin's Spinjitzu Battle Mech

Ninja fans aged 7 and over can play out scenes from season 3 of the NINJAGO® Dragons Rising TV show with this LEGO® NINJAGO Arin’s Spinjitzu Battle Mech (71839) toy. This building set for kids features a NINJAGO mech with posable arms and legs, which can be tilted and twisted into different positions, a rotating torso, an opening chest to place a minifigure inside and 2 large sword accessories.

Kids can also create their own ultimate mech by swapping body parts from Arin’s Spinjitzu Battle Mech with parts from customisable mechs in the 2024 NINJAGO range (sold separately): Cole’s Elemental Earth Mech (71806), Sora’s Elemental Tech Mech (71807), Kai’s Elemental Fire Mech (71808) and Lloyd’s Elemental Power Mech (71817).

The ninja toy role-play set comes with 2 minifigures: Arin with a crystal katana sword accessory and a Spectral Dragonian Warrior with its own sword accessory, plus a Baby Riyu model for kids to role-play gripping good vs. evil battles. Set contains 213 pieces.

LEGO® NINJAGO® battle toy for kids – Arin’s Spinjitzu Battle Mech lets boys and girls aged 7 and up recreate all-action scenes from season 3 of the NINJAGO Dragons Rising TV show
Posable mech toy – Arin’s Spinjitzu Battle Mech has posable arms and legs, a torso that can rotate, an opening chest to place a minifigure inside and 2 large sword accessories
Build your own mech – Kids can mix and match body parts and weapons from this mech with customizable mechs in the 2024 NINJAGO® range (sold separately) to create their own ultimate mech figure
2 NINJAGO® minifigures – LEGO® set comes with Arin armed with a crystal katana sword accessory and a villainous Spectral Dragonian Warrior for good vs. evil battles, plus a Baby Riyu model
Fun gift idea for kids – This LEGO® adventure toy provides a fun build-and-play experience and is a small treat toy for boys and girls aged 7 and up who have a passion for ninja adventures
Bigger ninja adventures – Look out for more LEGO® NINJAGO® toys (sets sold separately) featuring dragons, temples and vehicles
A universe of LEGO® NINJAGO® toys – Extensive collection of ninja toys lets kids escape into a fantasy world for imaginative play with their ninja heroes
Measurements – Arin’s SpinjitzuBattle Mech figure in this 213-piece LEGO® NINJAGO® building set for kids stands over 6.5 in. (16 cm) tall

Building Instruction for LEGO 71839 Arin's Spinjitzu Battle Mech

Part Lists for LEGO 71839 Arin's Spinjitzu Battle Mech

Part list on Bricklink.com

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Part list on Rebrickable.com

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Part list on Brickset.com

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LEGO 71839 Frequently Asked Questions

How much does LEGO 71839 Arin's Spinjitzu Battle Mech cost?

The lowest price in the Brickfact price comparison is currently £16.88 incl. shipping at Zatu Games. That is 6% below the RRP of £17.99.

Where can I buy LEGO 71839 cheapest?

Brickfact compares 6 retailers. The cheapest offers: Zatu Games (£16.88), Toy Street (£16.88), eBay (£16.99).

Is LEGO 71839 still available?

Yes, but LEGO 71839 is retiring soon. It is still available at 6 retailers in our price comparison.

When was LEGO 71839 cheapest?

Since tracking began on 12/10/2026, the lowest shop price recorded by Brickfact for LEGO 71839 was £16.88 on 26/10/2026 at Zatu Games, including shipping. Amazon prices are not included.