NewAges 6+

Kai's Dragon Mech Battle Pack (71851)

Name: Kai's Dragon Mech Battle Pack
Brand: LEGO
SKU: 71851
Rating: 4.8 (4 reviews)

LEGO.com RRP:

£8.99

LEGO.com

★4.8

(4 reviews)

★4.7

🧱 85 pieces - : £0.11

Available From

£8.99

Price checked: 16 Mar 2026

View Deal →

£8.99

Price checked: 27 Jan 2026

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£9.00

Price checked: 17 Mar 2026

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Best Deal

€9.99(~£8.39)

Price checked: 16 Mar 2026

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LEGO.comOfficial

£8.99

Price updated: 16 Mar 2026

View on LEGO →

Building Instructions Brickset

Price Analysis

Lowest Price Ever

£7.99

at Amazon UK · Mar 2026

Average Price (12mo)

£8.99

Current vs Average

+11.1%

Above average

Price Trend

Stable

Last 30 days

Best Month to Buy

February

Value Score

10.0/10

Price-per-piece vs theme avg

The lowest price we've recorded for Kai's Dragon Mech Battle Pack is £7.99 at Amazon UK in March 2026. The current price is 11.1% above the 12-month average of £8.99. Historically, February tends to offer the best prices for this set.

Description

Kai's Dragon Mech Battle Pack (71851) is a LEGO NINJAGO® set with 85 pieces, with an RRP of £8.99. It's currently available from £8.39 at Amazon FR. Prices have been stable over the last 30 days. With a value score of 10.0/10, this set offers excellent value compared to other NINJAGO® sets.

SpecificationsBoys, girls and fans of the NINJAGO® Dragons Rising TV show ages 6 and up can enjoy hours of imaginative play with the LEGO® NINJAGO Kai’s Dragon Mech Battle Pack (71851) building set. This playset features a dragon mech toy with posable legs, large wings, claw hands and an upper body that rotates 360 degrees, plus a cockpit to place a minifigure inside. This great value ninja toy also comes with 3 minifigures: Kai with 2 sword accessories, Sora with 2 swords and an Earth Monster toy with clawhands, letting kids enjoy hours of adventures as they act out scenes from season 4 of NINJAGO Dragons Rising. The LEGO NINJAGO range of building sets and adventure toys for kids includes detailed mechs, dragons and temples so fans can role-play awesome ninja action. Kids can build each playset with confidence using the LEGO Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 85 pieces.

Features

MECH TOY FOR KIDS – Kai’s Dragon Mech Battle Pack (71851) building toy lets boys and girls ages 6 and up role-play action from season 4 of the NINJAGO® Dragons Rising TV show
POSABLE DRAGON MECH – The dragon mech has posable legs, large wings, claw hands and an upper body that rotates 360 degrees, plus a cockpit to place a minifigure inside
3 NINJAGO® MINIFIGURES – This ninja toy comes with Kai, Sora and a villainous Earth Monster for fans to play out action-packed good vs. evil battles
ACCESSORIES – Each NINJAGO® character minifigure has at least 1 weapon accessory for enhanced play value: Kai has 2 swords, Sora has 2 swords and the Earth Monster has claw hands
SMALL GIFT FOR KIDS – This great value small LEGO® set provides a fun build-and-play experience and is a ninja gift idea for kids with a passion for fantasy and adventure toys
MORE NINJA ADVENTURES – Discover other LEGO® NINJAGO® toys (sets sold separately) featuring detailed mechs, dragons, temples and vehicles
A UNIVERSE OF LEGO® NINJAGO® SETS – This extensive collection of kids’ toys lets ninja fans and children escape into an immersive fantasy world for imaginative play with their ninja heroes
DIMENSIONS – This 85-piece ninja toy playset features a NINJAGO®dragon mech standing over 3.5 in. (9 cm) high

Frequently Asked Questions about Kai's Dragon Mech Battle Pack

What is the best price for LEGO Kai's Dragon Mech Battle Pack (Set 71851)?

LEGO Kai's Dragon Mech Battle Pack (Set #71851) is currently priced at £8.99 on LEGO.com. We continuously monitor prices across multiple UK retailers to find you the best deals.

How many pieces are in LEGO set 71851?

LEGO Kai's Dragon Mech Battle Pack (Set #71851) contains 85 pieces. At the best available price of £9.99, that works out to approximately 11.8p per piece.

What age is LEGO Kai's Dragon Mech Battle Pack suitable for?

LEGO Kai's Dragon Mech Battle Pack (Set #71851) is recommended for ages 6+. This set is part of the LEGO NINJAGO® theme. View all NINJAGO® sets and deals.

Where can I find the building instructions for LEGO Kai's Dragon Mech Battle Pack?

You can download the official building instructions for LEGO Kai's Dragon Mech Battle Pack (Set #71851) for free from LEGO.com. Download the building instructions here. The instructions are available as a PDF and can be viewed on any device.

Where can I buy LEGO Kai's Dragon Mech Battle Pack in the UK?

LEGO Kai's Dragon Mech Battle Pack (Set #71851) is available from 4 UK retailers including Amazon UK, Zavvi UK, argos_uk and others. Prices range from £8.99 to £9.99. It's also available directly from LEGO.com at £8.99.