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.
1,046 pieces in 326 part and color combinations, plus 6 minifigures.
LEGO counts 1,037 pieces. This inventory comes from a separate parts catalog and lists 1,073, including the 27 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.
Plate 1 x 2Yellow ×2Trans-Yellow ×6Trans-Yellow is see-through: hold the piece up to a light.
Bracket 1 x 2 - 1 x 2 InvertedBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick 1 x 1Black ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick 1 x 2Black ×6Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Brick 1 x 6Black ×4Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Brick 2 x 3Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
11 more look-alike pairs
Brick Curved 2 x 2 x 2/3Black ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Brick Sloped 30° 1 x 2 x 2/3Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studBlack ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×27Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 8Black ×2Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×7Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 2 x 8Black ×7Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Black ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]Black ×1Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×2Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Tile 2 x 4 with GrooveBlack ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-Bright GreenPart 58176Element 6507869 or 61718641 spare in the box×1
Trans-Clear
1 piece
Rock 1 x 1 Jewel / Gem 24 FacetTrans-ClearPart 30153Element 6513976 or 62477981 spare in the box×1
Trans-Red
1 piece
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-RedPart 58176Element 6507867 or 61717621 spare in the box×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 76122-1[No Color/Any Color]Part 54811Element 6270746×1
Minifigures
6 figures
BatwomanMinifigure, checked as a whole figure×1
Bruce Wayne, Black SuitMinifigure, checked as a whole figure×1
Catwoman with Red GogglesMinifigure, checked as a whole figure×1
Robin with Green Eyemask and Hands, Short Legs, and Yellow CapeMinifigure, checked as a whole figure×1
Two-Face with Red Jacket, Dark Pink Vest and Black ShirtMinifigure, checked as a whole figure×1
Batman, Dark Bluish Gray Suit, Black Cape and Cowl, Black Head, Dark Bluish Gray Legs, Gold Trim Batman Logo (39444 Cape)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.
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.