Free tool

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.

Aaron Fox's Aero-Striker V2

Checking

70320 Aaron Fox's Aero-Striker V2

273 pieces in 113 part and color combinations, plus 3 minifigures.

The official piece count includes the 28 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 46 pieces

  • Plate 1 x 6 Blue Part 3666 Element 366623 ×8
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×1
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×3
  • Plate 1 x 4 Dark Blue Part 3710 Element 4502089 or 4177739 ×2
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 ×9
  • Plate 2 x 14 Dark Bluish Gray Part 91988 Element 6000970 ×1
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×4
  • Plate 6 x 10 Dark Bluish Gray Part 3033 Element 4211114 ×1
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×2
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×6
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×4
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×5

Technic Pins 26 pieces

  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×12
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×6
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Dark Bluish Gray Part 11214 Element 6015356 ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×1

Plates Special 23 pieces

  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×2
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Blue Part 15573 Element 6092582 ×4
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×3
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Bluish Gray Part 18674 Element 6115080 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Green Part 60470b Element 6347288 or 4556159 ×2
  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Light Bluish Gray Part 11476 Element 6313114 or 6028812 ×1
  • Plate Special 1 x 8 with Door Rail Light Bluish Gray Part 4510 Element 4211498 ×2
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Light Bluish Gray Part 99206 Element 4654577 ×1

Technic Bricks 22 pieces

  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2
  • Technic Brick 1 x 12 [11 Pin Holes] Blue Part 3895 Element 389523 ×2
  • Technic Slope Long 1 x 6 with 3 Pin Holes Blue Part 2744 Element 6167028 or 6127332 ×2
  • Technic Brick 1 x 1 with Pin Hole Green Part 6541 Element 4542190 or 4522678 ×4
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Green Part 32064a Element 6206248 or 4233489 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] Light Bluish Gray Part 2730 Element 4211374 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Light Bluish Gray Part 3894 Element 4211466 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] White Part 3700 Element 6619284 or 370001 ×2

Tiles Special 18 pieces

  • Tile Special 1 x 2 with Handle Blue Part 2432 Element 243223 ×2
  • Tile Special 2 x 3 Pentagonal Blue Part 22385 Element 6245248 or 6128871 ×1
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×7
  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×6
  • Tile Special 2 x 3 Pentagonal with Nexo Power Shield Print - Ice Rain Trans-Neon Orange Part 22385pr0022 Element 6131738 ×1
  • Tile Special 2 x 3 Pentagonal with Nexo Power Shield Print - Target Trans-Yellow Part 22385pr0011 Element 6132187 ×1

Plates Round Curved and Dishes 12 pieces

  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×1
  • Dish 2 x 2 Inverted [Radar] Trans-Neon Orange Part 4740 Element 6245295 or 3006347 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×3

Plates Wedged 12 pieces

  • Wedge Plate 4 Stud 45° Angle Plate Black Part 15706 Element 6054852 ×2
  • Wedge Plate 3 x 2 Left Blue Part 43723 Element 4498156 or 4280150 ×1
  • Wedge Plate 3 x 2 Right Blue Part 43722 Element 4498155 or 4280149 ×1
  • Wedge Plate 4 x 6 Cut Corners Blue Part 32059 Element 6016165 or 4141268 ×2
  • Wedge Plate 2 x 4 Dark Blue Part 51739 Element 4613335 or 4251895 ×2
  • Wedge Plate 3 x 3 Cut Corner Dark Blue Part 2450 Element 6554202 or 6110050 ×2
  • Wedge Plate 4 x 2 Left Dark Blue Part 41770 Element 4529954 or 4247065 ×1
  • Wedge Plate 4 x 2 Right Dark Blue Part 41769 Element 4502091 or 4247066 ×1

Tiles 12 pieces

  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×2
  • Tile 1 x 6 with Groove Dark Blue Part 6636 Element 4252437 ×4
  • Tile 2 x 4 with Groove Dark Blue Part 87079 Element 4569836 ×3
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×1

Bricks Sloped 11 pieces

  • Brick Sloped 18° 4 x 2 Blue Part 30363 Element 6254675 or 6065880 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Blue Part 85984 Element 4651236 ×1
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Blue Part 15672 Element 6069163 ×2
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×1
  • Brick Sloped 18° 4 x 1 Dark Blue Part 60477 Element 6101304 ×2
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Flat Silver Part 22388 Element 6127036 1 spare in the box ×4

Bricks Special 10 pieces

  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×2
  • Brick Special 2 x 2 with Grooves and Axle Hole Dark Bluish Gray Part 90258 Element 6236949 or 4583879 ×2
  • Brick Special 1 x 2 x 2/3 with Studs on Sides Light Bluish Gray Part 4595 Element 6681658 or 4211502 ×2
  • Brick Special 1 x 4 with Groove Light Bluish Gray Part 2653 Element 4211613 ×4

Panels 9 pieces

  • Panel 2 x 2 x 1 Corner Light Bluish Gray Part 91501 Element 6181755 or 6008311 ×4
  • Panel 3 x 3 x 6 Corner Wall without Bottom Indentations Light Bluish Gray Part 87421 Element 6387879 or 4563698 ×4
  • Panel 1 x 2 x 1 [Rounded Corners] Trans-Neon Orange Part 4865b Element 6246895 or 6127431 ×1

Projectiles / Launchers 9 pieces

  • Launcher, Weapon Crossbow Shooter Black Part 20105 Element 6282071 or 6117858 ×1
  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 15392 Element 6051334 1 spare in the box ×2
  • Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray Part 15400 Element 6324200 or 6048898 ×2
  • Launcher, Weapon Gun / Blaster / Shooter Flat Silver Part 22487 Element 6131790 ×1
  • Projectile, Spring Shooter Ammunition 8L Bar Trans-Neon Orange Part 15303 Element 6124908 ×3

Technic Beams 8 pieces

  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Dark Bluish Gray Part 60483 Element 6265093 or 6006141 ×1
  • Technic Beam 1 x 11.5 Double Bent Thick Light Bluish Gray Part 32009 Element 6271156 or 4234240 ×2
  • Technic Beam 2 x 4 L-Shape Thick Lime Part 32140 Element 6271826 or 4140345 ×5

Technic Connectors 8 pieces

  • Technic Axle Connector Double Flexible [Rubber] Black Part 45590 Element 4198367 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×2
  • Technic Pin Connector Round 1L [Beam] Dark Bluish Gray Part 18654 Element 6100030 1 spare in the box ×2
  • Technic Pin Connector Round [Slotted] Flat Silver Part 62462 Element 6245499 or 6054858 ×3

Bars, Ladders and Fences 6 pieces

  • Bar 2L with Towball Trans-Neon Orange Part 22484 Element 6131711 ×2
  • Bar 4L (Lightsaber Blade / Wand) Trans-Neon Orange Part 30374 Element 6288243 or 6120914 ×4

Bricks 6 pieces

  • Brick 1 x 1 Dark Blue Part 3005 Element 6554189 or 4255413 ×4
  • Brick 1 x 1 x 5 with Solid Stud Light Bluish Gray Part 2453b Element 4211362 ×2

Bricks Wedged 5 pieces

  • Brick Wedged, Sloped 4 x 4 Triple, Stud Notches Blue Part 48933 Element 6030195 or 4571219 ×2
  • Brick Wedged, Sloped 45° 6 x 8 with Pointed Cutout Dark Blue Part 22390 Element 6482966 or 6131732 ×2
  • Brick Wedged, Sloped 4 x 4 Pointed Flat Silver Part 22391 Element 6129453 ×1

Hinges, Arms and Turntables 5 pieces

  • Hinge Brick 1 x 2 Base Blue Part 3937 Element 393723 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth Red Part 60471 Element 4515338 ×1

Technic Axles 5 pieces

  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×2
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1
  • Technic Axle 8 Red Part 3707 Element 6130004 ×1

Bricks Round and Cones 2 pieces

  • Cone 1 x 1 [Top Groove] Flat Silver Part 59900 Element 6121350 ×2

Flags, Banners and Signs 2 pieces

  • Flag 2 x 2 Trapezoid with Flat Area between Clips Dark Blue Part 44676 Element 4529551 or 4261792 ×2

Minifig Accessories 2 pieces

  • Equipment Zip Line Handle Dark Bluish Gray Part 30229 Element 4211081 ×2

Minifig Shields, Weapons, & Tools 2 pieces

  • Shield Pentagonal Flat Silver Part 22408 Element 6129534 ×1
  • Weapon Sword / Shortsword Elaborate Hilt Flat Silver Part 76764 Element 6020190 1 spare in the box ×1

Minifig Upper Body 2 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Dark Bluish Gray Part 30377 Element 6319332 or 4210900 1 spare in the box ×2

Pneumatics 2 pieces

  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×1
  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 1 spare in the box ×1

String, Bands and Reels 2 pieces

  • Chain 16L [21 Links] Trans-Neon Orange Part 60169 Element 6114250 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Trans-Orange Part 98138 Element 6514197 or 6274747 1 spare in the box ×2

Stickers 1 piece

  • Sticker Sheet for Set 70320-1 [No Color/Any Color] Part 24280 Element 6131746 or 6131745 ×1

Technic Bushes 1 piece

  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×1

Technic Steering, Suspension and Engine 1 piece

  • Technic Link 1 x 9 Black Part 32293 Element 6244698 or 4141300 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 6 x 4 x 1 1/3 Pointed Trans-Neon Orange Part 22483 Element 6129592 ×1

Minifigures 3 figures

  • Aaron Bot Minifigure, checked as a whole figure ×1
  • Ash Attacker with Wings and Orange Horns Minifigure, checked as a whole figure ×1
  • Aaron Fox with Tile with Clip on Back 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.