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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Cannon Battle

Checking

6239 Cannon Battle

36 pieces in 28 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 6 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×1
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×1

Bricks Round and Cones 4 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 Also in Dark Bluish Gray ×2
  • Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 Also in Black ×2

Tiles 4 pieces

  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×1
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×1
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×1
  • Tile 2 x 2 with Map River, Dark Tan Mountains, Handwriting and Red X Print Tan Part 3068bpr0139 Element 4524449 ×1

Bricks 3 pieces

  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×1
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×2

Bricks Sloped 3 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Bluish Gray Part 3040b Element 4211135 ×2
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Pearl Gold Part 3048c Element 4295174 ×1

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Sword / Cutlass Dark Bluish Gray Part 2530 Element 6492106 or 6205488 1 spare in the box ×1
  • Weapon Gun / Flintlock / Musket (Pirate) Reddish Brown Part 2561 Element 4211311 ×1

Plants & Trees 2 pieces

  • Plant, Round 1 x 1 - 3 Bamboo Leaves Green Part 30176 Element 6270003 or 6248461 ×2

Plates Round Curved and Dishes 2 pieces

  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×2

Plates Special 2 pieces

  • Plate Special 2 x 2 with Wheels Holder Wide Black Part 6157 Element 615726 ×1
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Red Part 4623 Element 462321 ×1

Projectiles / Launchers 2 pieces

  • Launcher, Weapon Cannon Shooting Pearl Dark Gray Part 84943 Element 4580343 or 4541846 ×1
  • Launcher Base, Weapon Cannon Base 2 x 4 Red Part 2527 Element 6224366 or 6093578 ×1

Wheels and Tyres 2 pieces

  • Wheel Wagon Large (33mm D.), hole notched for wheels holder pin Reddish Brown Part 4489b Element 4211279 ×2

Animal / Creature Accessories 1 piece

  • Animal / Creature Accessory, Horse Hitching, 1 x 2 Plate and 2 x 2 Plate [Studded] Dark Bluish Gray Part 2397 Element 4268684 ×1

Bars, Ladders and Fences 1 piece

  • Bar 4L (Lightsaber Blade / Wand) Reddish Brown Part 30374 Element 6116613 or 4262974 ×1

Energy Effects 1 piece

  • Flame / Headwear Accessory Plume / Feather, Triple Point Trans-Neon Orange Part 64647 Element 6289248 or 6100033 ×1

Minifig Accessories 1 piece

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Pearl Gold Part 64644 Element 4538126 ×1

Minifigures 2 figures

  • Soldier (Imperial Soldier II) - Printed Shako, Smirk Minifigure, checked as a whole figure ×1
  • Pirate - Green Stripes, Reddish Brown Legs, Dark Green Bandana, Black Beard 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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