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LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Arin vs. Dragonian Battle

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30700 Arin vs. Dragonian Battle

39 pieces in 25 part and color combinations, plus 2 minifigures.

The official piece count includes the 9 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Black 13 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 Black Part 5404 Element 6513918 or 6483559 ×2
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×4
  • Brick Wedged 2 x 2 Facet Black Part 87620 Element 4584274 ×3
  • Bucket 1 x 1 x 1 Handle Black Part 95344 Element 6245281 or 6121725 1 spare in the box ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1

Dark Bluish Gray 6 pieces

  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×1
  • Chain 6L [5 Links] Dark Bluish Gray Part 92338 Element 6311445 or 4600437 1 spare in the box ×1
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×3
  • Weapon Hilt Symmetric Dark Bluish Gray Part 66909 Element 6296951 ×1

Light Bluish Gray 4 pieces

  • Bar 5L with Handle (Friction Ram) Light Bluish Gray Part 87618 Element 4565433 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×1
  • Bucket 1 x 1 x 1 Light Bluish Gray Part 95343 Element 6057487 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×1

Red 4 pieces

  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×2

Dark Blue 3 pieces

  • Brick Sloped Inverted 45° 2 x 1 with 2/3 Cutout Dark Blue Part 2310 Element 6554233 or 6470262 ×2
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Dark Blue Part 41740 Element 6256610 ×1

Light Aqua 3 pieces

  • Plant / Animal Body Part, Tree / Branch / Tail / Appendage / Tentacle with Pin Light Aqua Part 69858 Element 6544733 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Light Aqua Part 6141 Element 6382504 1 spare in the box ×2

Reddish Brown 2 pieces

  • Plate Round Corners 2 x 6 Double Reddish Brown Part 18980 Element 6357946 ×2

Dark Tan 1 piece

  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Tan Part 18674 Element 6132767 ×1

Olive Green 1 piece

  • Animal, Frog Olive Green Part 33320 Element 6472547 ×1

Pearl Gold 1 piece

  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Pearl Gold Part 21459 Element 6116596 ×1

Trans-Yellow 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Yellow Part 30153 Element 6513974 or 6247795 1 spare in the box ×1

Minifigures 2 figures

  • Arin, Black Shoulder Armor and Mask, Hair Minifigure, checked as a whole figure ×1
  • Spectral Dragonian Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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