How many pieces are in the Sonic Phantom?

Sonic Phantom contains 216 pieces.

What age is the Sonic Phantom recommended for?

This set is recommended for ages 18+.

When was the Sonic Phantom released?

Sonic Phantom was released in 2006.

🏛 Exo-Force

Set #7704

Sonic Phantom

Name: Sonic Phantom
Brand: LEGO
SKU: 7704-1

Sonic Phantom is a standout mech from the Exo-Force line.

🏆 Best For: Teen and adult LEGO fans interested in mechs and the Exo-Force theme. ⏱ 2.5 hr build 🧩 216 pcs

★★★★☆ 4.1

Fans appreciate the Sonic Phantom for its unique design and striking color scheme, making it a standout mech from the Exo-Force line. Some criticize the limited articulation compared to modern mech sets, but overall, it's considered a worthwhile addition to any LEGO collection.

MSRP

$19.99

Best Price

$17.99

You Save

10% OFF

View on eBay

Check price on Amazon

📝 Our Take

Sonic Phantom is a standout mech from the Exo-Force line. Its unique design incorporates a sleek, almost organic aesthetic with the robotic elements, making it a visually striking model even today.

This set is perfect for LEGO collectors and fans of mechs or the Exo-Force theme. The build provides a fun and engaging experience. It's great for display and offers a nostalgic trip for those who remember the Exo-Force era.

Skip this if you're not into mechs or prefer more modern building techniques. While a cool set, its age means the building style is simpler than current LEGO models. Consider newer LEGO mechs from themes like Ninjago or Marvel instead.

✨ New

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How does the Sonic Phantom compare to other Exo-Force mechs in terms of design and stability? What are some creative ways to pose and display the Sonic Phantom? Is the current market price of the Sonic Phantom a good value for collectors? How durable is the build for play or display over time?

🧱 Building Experience

🧩

216

Pieces

⏱

2.5h

Build Time

📊

Intermediate

Difficulty

Build Highlights:

Unique design blending organic and robotic aesthetics.
Interesting use of Technic elements for articulation and stability.
Incorporates a distinctive color scheme with black, dark bluish gray, and lime green.
Offers good poseability for dynamic display options.

📈 Investment Analysis

↑ Trending up since release

Investment Grade

⏳ Appreciating

The Sonic Phantom holds reasonable investment potential, driven by its status as a retired set from the popular Exo-Force theme. Its relatively low piece count might limit its appeal compared to larger sets, but the unique design and rising price trend suggest growing collector interest. The set's age also contributes to its rarity, making it a potentially good investment for those seeking to diversify their LEGO portfolio. However, potential investors should monitor price fluctuations and consider the overall condition of the set.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Compared to other Exo-Force sets, the Sonic Phantom offers a unique blend of aesthetics and playability. While larger sets like the Grand Titan offer more complex builds, the Sonic Phantom's manageable size and striking design make it a compelling alternative. For those interested in mechs, Ninjago and Marvel offer more recent options, but the Exo-Force theme has a distinct nostalgic appeal and unique design language.

1 Minifigures Included

Devastator with Trans-Neon Green Torso and Red Eyes

8 parts

The set includes the Devastator minifigure, featuring a trans-neon green torso and red eyes, which is unique to the Exo-Force theme and adds to the set's collectible appeal.

📦 Full Parts Inventory - 76 unique parts • 186 total pieces

Wedge Plate 3 x 6...

Part #: 2419 1× Black

Tile 1 x 4 with G...

Part #: 2431 2× Dark Bluish Gray

Tile Special 1 x ...

Part #: 2432 1× Black

Plate Special 2 x...

Part #: 2444 2× Light Bluish Gray

Brick 2 x 6

Part #: 2456 3× Dark Bluish Gray

Brick Special 1 x...

Part #: 2458 4× Light Bluish Gray

Plate Special 2 x...

Part #: 2476a 4× Light Bluish Gray

Antenna 8H Whip

Part #: 2569 1× Black

Technic Pin with ...

Part #: 2780 1× Black

Technic Beam 1 x ...

Part #: 2825 4× Black

Brick 2 x 4

Part #: 3001 1× Dark Bluish Gray

Brick 2 x 2

Part #: 3003 1× Dark Bluish Gray

Plate 2 x 3

Part #: 3021 2× Tan

Brick Special 1 x...

Part #: 30236 1× Black

Slope 18° 4 x 2

Part #: 30363 1× Dark Bluish Gray

Hinge Brick 1 x 2...

Part #: 30365 4× Black

Brick Round 2 x 2...

Part #: 30367b 2× Lime

Bar 4L (Lightsabe...

Part #: 30374 1× Trans-Red

Slope 45° 2 x 2

Part #: 3039 2× Black

Slope 45° 2 x 1 w...

Part #: 3040b 1× Dark Bluish Gray

Hinge Cylinder 1 ...

Part #: 30553 1× Black

Slope Curved 2 x ...

Part #: 30602 1× Trans-Brown

Tile 2 x 2 with G...

Part #: 3068b 2× Dark Bluish Gray

Plate Special 3 x...

Part #: 3176 2× Dark Bluish Gray

Plate Special 3 x...

Part #: 3176 2× Black

Technic Beam 1 x ...

Part #: 32009 4× Dark Bluish Gray

Technic Brick 1 x...

Part #: 32018 4× Black

Technic Axle Conn...

Part #: 32039 2× Light Bluish Gray

Technic Axle 2 No...

Part #: 32062 1× Red

Technic Brick 1 x...

Part #: 32064b 2× Yellow

Launcher, Technic...

Part #: 32074c01 1× Black

Technic Bush 1/2 ...

Part #: 32123b 4× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32449 4× Lime

Technic Ball Joint

Part #: 32474 1× Lime

Technic Beam 1 x ...

Part #: 32524 2× Black

Technic Beam 3 x ...

Part #: 32526 1× Dark Bluish Gray

Plate 1 x 8

Part #: 3460 2× Black

Slope Inverted 45...

Part #: 3660 2× Dark Bluish Gray

Slope Inverted 45...

Part #: 3665 1× Dark Bluish Gray

Technic Pin witho...

Part #: 3673 1× Light Bluish Gray

Technic Brick 1 x...

Part #: 3700 6× Dark Bluish Gray

Technic Axle 4

Part #: 3705 2× Black

Technic Axle 6

Part #: 3706 7× Black

Technic Plate 2 x...

Part #: 3709 4× Black

Technic Plate 2 x...

Part #: 3709 6× Dark Bluish Gray

Technic Bush

Part #: 3713 1× Light Bluish Gray

Technic Axle Pin ...

Part #: 3749 4× Tan

Plate Special 1 x...

Part #: 3794a 3× Dark Bluish Gray

Cone 4 x 4 x 2, A...

Part #: 3943b 2× Black

Support 1 x 1 x 5...

Part #: 40244 4× Black

Technic Cylinder ...

Part #: 41531 1× Black

Hinge Cylinder 1 ...

Part #: 41532 4× Black

Wedge Curved 8 x ...

Part #: 41749 2× Black

Wedge Curved 8 x ...

Part #: 41750 2× Black

Rubber Band / Bel...

Part #: 41752 1× Dark Bluish Gray

Brick Curved 6 x 1

Part #: 42022 3× Dark Bluish Gray

Technic Pin 1/2

Part #: 4274 1× Light Bluish Gray

Technic Axle Pin ...

Part #: 43093 9× Blue

Equipment Weapon,...

Part #: 4349 2× Dark Bluish Gray

Brick Curved 6 x 2

Part #: 44126 2× Black

Hinge Tile 1 x 3 ...

Part #: 44300 1× Dark Bluish Gray

Cone 1 x 1 [No To...

Part #: 4589 3× Trans-Red

Wedge Plate 8 x 3...

Part #: 50304 1× Black

Wedge Plate 8 x 3...

Part #: 50305 1× Black

Engine / Air Scoo...

Part #: 50943 3× Light Bluish Gray

Engine, Very Larg...

Part #: 53983pat0001 4× Black

Light Brick 2 x 4...

Part #: 54605 1× Trans-Clear

Plate Special 1 x...

Part #: 6019 2× Black

Plate Round 1 x 1...

Part #: 6141 4× Trans-Red

Technic Axle and ...

Part #: 6536 1× Light Bluish Gray

Technic Axle Conn...

Part #: 6538b 5× Lime

Technic Pin Long ...

Part #: 6558 5× Black

Technic Axle 3 wi...

Part #: 6587 1× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 6632 2× Light Bluish Gray

Projectile, Techn...

Part #: 76110c05 1× Light Bluish Gray

Hose, Ribbed 7mm ...

Part #: 78c09 4× Pearl Light Gray

Rubber Belt Small...

Part #: 85543 1× White

🧱 Sticker Sheet for...

Part #: 54941 1× [No Color/Any Color]

The set provides a good selection of Technic parts in black and dark bluish gray, useful for MOC builders looking to add articulation and structural elements to their creations. The inclusion of lime green Technic beams offers a distinctive color accent.

🛒 Where to Buy

eBay

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$17.99 →

Walmart

✓ In Stock

$18.99

Target

✓ In Stock

$19.99

Amazon

Check price

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💎 Notable Parts

Black Engine, Very Large Turbine, with Pearl Light Gray Marbled Pattern (4x) $2.00

Black Technic Brick 1 x 14 [13 Pin Holes] (4x) $0.60

Lime Technic Axle Connector Ridged [with x Hole x Orientation] (5x) $0.50

Est. BrickLink Part Value

$3.10

💡 MOC Potential

🤖 Alternate mech designs with different weapon configurations

🚗 Futuristic ground vehicle or speeder

🏙 Cyberpunk cityscape additions

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

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Inventory Statistics

Unique Parts

186

Total Pieces

Minifigures

Inventory Version: 1

Exo-Force Unite!
Pilot the Sonic Phantom!

Sonic Phantom

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

⚖ Compare Similar Sets

1 Minifigures Included

📦 Full Parts Inventory - 76 unique parts • 186 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

📰 Exo-Force News

Febrovery 2026: Assault Rover

Building Without Limits: A Deep Dive On Digital LEGO MOCs

Random figure of the day: exf010

Sonic Phantom News (5)

Febrovery 2026: Assault Rover

Building Without Limits: A Deep Dive On Digital LEGO MOCs

Random figure of the day: exf010

Automata Overdrive: “Droneuary” brings the best out of LEGO bot builders [Fea...

Exo-Force Uplink upgrade is ready to quash the robot rebellion

Community Insights

What Reddit Says

What YouTubers Say

Inventory Statistics

Exo-Force Unite!Pilot the Sonic Phantom!

Sonic Phantom

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

⚖ Compare Similar Sets

1 Minifigures Included

📦 Full Parts Inventory - 76 unique parts • 186 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

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📰 Exo-Force News

Febrovery 2026: Assault Rover

Building Without Limits: A Deep Dive On Digital LEGO MOCs

Random figure of the day: exf010

Sonic Phantom News (5)

Febrovery 2026: Assault Rover

Building Without Limits: A Deep Dive On Digital LEGO MOCs

Random figure of the day: exf010

Automata Overdrive: “Droneuary” brings the best out of LEGO bot builders [Fea...

Exo-Force Uplink upgrade is ready to quash the robot rebellion

Community Insights

What Reddit Says

What YouTubers Say

Inventory Statistics

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Exo-Force Unite!
Pilot the Sonic Phantom!