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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.

Striking Venom

Checking

7707 Striking Venom

602 pieces in 99 part and color combinations, plus 6 minifigures.

The piece count includes the 46 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

Black 310 pieces

  • Bar 8L - Two Stop Rings / One Pin, Technic Figure Ski Pole [Rounded End] Black Part 2714a Element 4120251 ×2
  • Brick 2 x 10 Black Part 3006 Element 4617860 or 300626 ×1
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×4
  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 Also in Dark Bluish Gray ×1
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Black Part 4287b ×2
  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Wedged, Curved 16 x 4 Triple with Inner Ridges Black Part 45301 Element 4200486 ×4
  • Brick Wedged, Sloped 18° 4 x 4 Corner Black Part 43708 Element 6172509 or 6004449 ×8
  • Equipment Camera with Side Sight [aka Space Gun] Black Part 4360 Element 436026 ×4
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×10
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×4
  • Plate 1 x 6 Black Part 3666 Element 366626 ×4
  • Plate 2 x 3 Black Part 3021 Element 302126 ×6
  • Support 1 x 1 x 5 1/3 Spiral Staircase Axle Black Part 40244 Element 4155558 ×12
  • Technic Axle 12 Black Part 3708 Element 370826 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×10
  • Technic Axle 6 Black Part 3706 Element 370626 ×16
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×8
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×6
  • Technic Axle and Pin Connector Angled #4 - 135° Black Part 32192 Element 6262897 or 4121610 ×8
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×8
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×8
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×8
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×16
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Black Part 32064b ×10
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×4
  • Technic Digger Bucket 4 x 4 x 9 with 3 teeth Black Part 2950 Element 4562379 or 4248956 ×4
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×16
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 2 spares in the box ×108
  • Technic Plate 2 x 8 [7 Holes] Black Part 3738 Element 373826 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 Also in Dark Bluish Gray ×1
  • Torso/Head Mechanical, Exo-Force Robot with Marbled Pearl Gold Pattern Black Part 53988pat0002 Element 4297302 ×1
  • Wedge Plate 4 x 4 Cut Corner Black Part 30503 Element 4160025 ×1
  • Wedge Plate 6 x 6 Cut Corner Black Part 6106 Element 4106977 or 610626 ×3

Light Bluish Gray 111 pieces

  • Bracket 1 x 2 - 2 x 2 Light Bluish Gray Part 44728 Element 6117967 or 6009014 ×1
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×1
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×5
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×32
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×8
  • Technic Axle and Pin Connector Angled #5 - 112.5° Light Bluish Gray Part 32015 Element 6271347 or 4211551 ×4
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×8
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Light Bluish Gray Part 3894 Element 4211466 ×8
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×9
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×11
  • Technic Plate 2 x 4 [3 Holes] Light Bluish Gray Part 3709 Element 4211444 ×10
  • Technic Rotation Joint Disk with Pin and 3L Beam Thick Light Bluish Gray Part 44225 Element 6671155 or 6332151 ×8
  • Tile Special 1 x 1 with Clip and Straight Tips Light Bluish Gray Part 2555 Element 4211369 or 2555194 ×4

Dark Bluish Gray 47 pieces

  • Bar 1L with Clip Dark Bluish Gray Part 48729a Element 4222196 ×4
  • Brick Sloped 45° 2 x 2 Dark Bluish Gray Part 3039 Element 4211054 Also in Black ×6
  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×1
  • Equipment Binoculars Dark Bluish Gray Part 30162 Element 4587887 or 4211051 ×4
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Dark Bluish Gray Part 30365 Element 4210724 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×2
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×4
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×1
  • Plate Special 2 x 2 with Bar Frame Octagonal Dark Bluish Gray Part 30033 Element 4211025 ×2
  • Support Round 1 x 1 x 6 Solid Pillar Dark Bluish Gray Part 43888 Element 4180811 ×4
  • Technic Axle and Pin Connector Perpendicular Double Dark Bluish Gray Part 32291 Element 6280395 or 4210655 ×1
  • Technic Rotation Joint Disk with Pin Hole and 3L Beam Thick Dark Bluish Gray Part 44224 Element 4182751 ×8
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×4
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 Also in Black ×2
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×2

Trans-Neon Green 29 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Neon Green Part 3941 Element 6273157 or 611649 ×7
  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×10
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Neon Green Part 2412b Element 4272661 or 4109766 ×12

Dark Green 24 pieces

  • Brick Wedged, Sloped 4 x 4 Pyramid Center Dark Green Part 47757 Element 4293616 ×8
  • Wedge Plate 12 x 3 Left Dark Green Part 47397 Element 4293614 ×8
  • Wedge Plate 12 x 3 Right Dark Green Part 47398 Element 4293615 ×8

Lime 19 pieces

  • Brick Round 1 x 1 Open Stud Lime Part 3062b Element 4212454 ×4
  • Technic Axle Connector Ridged [with x Hole x Orientation] Lime Part 6538b Element 4265703 or 4154499 ×1
  • Technic Axle and Pin Connector Perpendicular Lime Part 6536 Element 6261378 or 6149996 ×8
  • Technic Wedge Belt Wheel [aka Pulley] Lime Part 4185 Element 6335116 or 4494219 ×6

Red 14 pieces

  • Projectile, Weapon Disc 2 x 2 with Marbled Yellow Pattern Red Part 53993pat0001 Element 4496199 ×10
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4

Blue 12 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×12

Pearl Light Gray 10 pieces

  • Arm Mechanical with Clip [Thin Support] Pearl Light Gray Part 53989 Element 4494600 or 4288114 ×2
  • Hose, Ribbed 7mm D. 2L / 1.6cm Pearl Light Gray Part 78c02 Element 4495192 or 4275384 1 spare in the box ×4
  • Hose, Ribbed 7mm D. 4L / 3.2cm Pearl Light Gray Part 78c04 Element 4495200 or 4275389 1 spare in the box ×1
  • Hose, Ribbed 7mm D. 6L / 4.8cm Pearl Light Gray Part 78c06 Element 4495202 or 4143468 ×2
  • Torso/Head Mechanical [Exo-Force Robot] Pearl Light Gray Part 53988 Element 4494597 or 4283927 ×1

Trans-Red 7 pieces

  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Red Part 41669 Element 4163567 ×2

Trans-Brown 6 pieces

  • Launcher 2 x 3 x 4 2/3, Disc Trans-Brown Part 53990 Element 4292137 ×1
  • Windscreen 8 x 4 x 2 Curved Taper with Locking Dual 2 Fingers Trans-Brown Part 30536 Element 4215614 or 4143049 ×5

White 4 pieces

  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×4

Yellow 4 pieces

  • Technic Brick 5 x 5 Right Angle (1 x 4 - 1 x 4) Yellow Part 32555 Element 6222428 or 4257699 ×4

Pearl Gold 2 pieces

  • Arm Mechanical with Clip [Thin Support] Pearl Gold Part 53989 Element 4616561 or 4498544 ×2

Trans-Clear 2 pieces

  • Cable, Fiber Optics, Wide 20L / 16.0cm Trans-Clear Part 40002c20 Element 4284052 ×1
  • Light Brick 2 x 4 [Red LED] Trans-Clear Part 54605 Element 4283931 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 7707-1 [No Color/Any Color] Part 56492 Element 4295097 ×1

Minifigures 6 figures

  • Iron Drone / Devastator with Red Eyes Minifigure, checked as a whole figure ×4
  • Iron Drone / Devastator Minifigure, checked as a whole figure ×2

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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