Ultrasonic Showdown (70171-1) is a Ultra Agents LEGO set released in 2015 with 187 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Ultra Agents sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 2 minifigures and 70 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
2015 (11 years ago — may be retired)
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Catalog scale
187 parts listed · 70 inventory lines tracked
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Minifigures
2 in this set's inventory — verify completeness when buying used
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Build manual
Digital booklet available on this page — use it to verify bag contents
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Shipping weight (est.)
~262 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Building instructions
Official LEGO instructions — read on BrickID
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Minifigures in Ultrasonic Showdown
Parts in this set
70 parts · page 1 of 2 · updating…
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Bracket 1 x 2 - 1 x 299781 · ×3 · White -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×4 · Black -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×2 · Red -
Bracket 1 x 2 - 2 x 493274 · ×2 · Black -
Brick 2 x 23003 · ×1 · Dark Bluish Gray -
Brick Curved 2 x 2 with Lip, No Studs30602 · ×3 · Trans-Light Blue -
Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End47457 · ×1 · Dark Bluish Gray -
![Brick Round 2 x 2 [Grill]](https://cdn.rebrickable.com/media/parts/elements/6024730.jpg)
Brick Round 2 x 2 [Grill]92947 · ×2 · Black -
Brick Round 2 x 2 Truncated Cone98100 · ×2 · Black -
Brick Round 4 x 4 Centre Hole87081 · ×2 · Black -
Brick Round Corner 6 x 6 with 33° Slope and Facet Cutout95188 · ×2 · Black -
Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate61409 · ×2 · Black -
Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate61409 · ×1 · White -
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×2 · Black -
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)54200 · ×2 · Trans-Light Blue -
Brick Sloped 45° 2 x 1 with Bottom Pin3040b · ×2 · White -
Brick Sloped 45° 2 x 23039 · ×1 · Dark Bluish Gray -
Brick Special 1 x 1 with Headlight4070 · ×2 · Blue -
Brick Special 1 x 1 with Stud on Side and Conductive Element on Opposite Side15411 · ×2 · Black -
![Brick Special 1 x 2 with Vertical Clip [Open O Clip]](https://cdn.rebrickable.com/media/parts/elements/6330197.jpg)
Brick Special 1 x 2 with Vertical Clip [Open O Clip]30237b · ×1 · Black -
Brick Special 1 x 2 x 2/3 with Studs on Sides4595 · ×1 · Black -
Brick Wedged, Curved 4 x 4 No Top Studs47753 · ×2 · Black -
Brick Wedged, Sloped 4 x 2 Triple Left43710 · ×1 · Black -
Brick Wedged, Sloped 4 x 2 Triple Right43711 · ×1 · Black -
![Cone 1 x 1 [Top Groove]](https://cdn.rebrickable.com/media/parts/elements/4567338.jpg)
Cone 1 x 1 [Top Groove]59900 · ×2 · Trans-Orange -
![Dish 2 x 2 Inverted [Radar]](https://cdn.rebrickable.com/media/parts/elements/4215339.jpg)
Dish 2 x 2 Inverted [Radar]4740 · ×1 · Trans-Light Blue -
Engine, Large43121 · ×1 · Black -
![Equipment Radio [Extended Handle, Expanded Speaker Grille]](https://cdn.rebrickable.com/media/parts/elements/6100054.jpg)
Equipment Radio [Extended Handle, Expanded Speaker Grille]19220 · ×1 · Black -
Hinge Brick 1 x 2 Base3937 · ×2 · Black -
Hinge Brick 2 x 2 Top Plate Thin6134 · ×2 · Light Bluish Gray -
Launcher Trigger, Weapon Rapid Shooter, Flat Axle Hole18587 · ×2 · Light Bluish Gray -
Launcher, Weapon Rapid Shooter Six Barrel, 3 Fingers18588 · ×2 · White -
Plate 1 x 23023 · ×9 · Trans-Light Blue -
Plate 1 x 33623 · ×2 · Dark Bluish Gray -
Plate 2 x 23022 · ×1 · Dark Bluish Gray -
Plate 2 x 33021 · ×4 · White -
Plate 2 x 43020 · ×5 · Dark Bluish Gray -
Plate 2 x 63795 · ×1 · Dark Bluish Gray -
Plate 2 x 83034 · ×1 · Light Bluish Gray -
Plate 4 x 43031 · ×2 · Black -
Plate 4 x 4 Corner2639 · ×2 · White -
Plate Round 1 x 1 with Solid Stud6141 · ×25 · Trans-Orange -
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)15573 · ×1 · Pearl Gold -
![Plate Special 1 x 2 with Clips Horizontal [Open O Clips]](https://cdn.rebrickable.com/media/parts/elements/6310268.jpg)
Plate Special 1 x 2 with Clips Horizontal [Open O Clips]60470b · ×1 · Black -
Plate Special 2 x 2 with Groove and Center Stud (Jumper)87580 · ×2 · Dark Bluish Gray -
Sticker Sheet for Set 70171-121670 · ×1 · [No Color/Any Color] -
Tail Shuttle6239 · ×2 · Black -
Technic Axle 8 with Stop55013 · ×2 · Dark Bluish Gray