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The Workshop Sheet 10 of 19

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.

Ninja Blaster

Checking

1099 Ninja Blaster

20 pieces in 13 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 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.

Show

Piece checklist

Plates 3 pieces

  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×1

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×2

Bricks Sloped 2 pieces

  • Brick Sloped 33° 3 x 1 Brown Part 4286 Element 4118916 or 428625 ×2

Minifig Accessories 2 pieces

  • Equipment Saucepan Black Part 4529 Element 452926 ×2

Plates Special 2 pieces

  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Red Part 3839b Element 4286611 or 383921 ×1
  • Plate Special 1 x 4 with Wheels Holder Red Part 2926 Element 292621 ×1

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Light Gray Part 3700 Element 370002 ×2

Tiles Special 2 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×2

Wheels and Tyres 2 pieces

  • Wheel Wagon Small (27mm D.) Brown Part 2470 Element 4248114 or 247075 ×2

Bricks Special 1 piece

  • Brick Special 2 x 2 with 2 Pins and Axle Hole Dark Gray Part 30000 Element 3000027 ×1

Hinges, Arms and Turntables 1 piece

  • Hinge Brick 2 x 2 Top Plate Thin Red Part 6134 Element 613421 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Sword / Katana [Octagonal Guard] Light Gray Part 30173a Element 4114205 ×1

Minifigures 1 figure

  • Robber with Tattered Green Vest 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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