7721-1

Combat Crawler X2

Set number: 7721-1
Year: 2007
Theme: Exo-Force
Parts: 581
Minifigures: 3

Building instructions

The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.

View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)

Minifigures

fig-004841Devastator with Trans-Red Torso and Red Eyes1×8 parts
fig-004835Iron Drone / Devastator with Red Eyes1×8 parts
fig-000993Ryo in Gold Armor1×4 parts

Parts list – 7721-1 Combat Crawler X2

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164 lines, 577 pieces

Parts list of set 7721-1
Part	Name	Colour	Quantity	Note
53451	Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallAnimal / Creature Body Parts	Red	10×
3957a	Antenna 1 x 4 with Rounded TopBars, Ladders and Fences	Black	2×
30055	Fence Spindled 1 x 4 x 2 [2 Top Studs]Bars, Ladders and Fences	Dark Bluish Gray	3×
298c02	Lever Small Base with Black LeverBars, Ladders and Fences	Yellow	2×
3005	Brick 1 x 1Bricks	Black	4×
3004	Brick 1 x 2Bricks	Black	3×
3004	Brick 1 x 2Bricks	Dark Bluish Gray	1×
3245b	Brick 1 x 2 x 2 with Inside Axle HolderBricks	Dark Bluish Gray	2×
3622	Brick 1 x 3Bricks	Light Bluish Gray	4×
3009	Brick 1 x 6Bricks	Light Bluish Gray	1×
3001	Brick 2 x 4Bricks	Black	2×
2456	Brick 2 x 6Bricks	Black	2×
3307	Brick Arch 1 x 6 x 2 - Thick Top with Reinforced UndersideBricks Curved	Black	2×
3062b	Brick Round 1 x 1 Open StudBricks Round and Cones	Light Bluish Gray	2×
4588	Brick Round 1 x 1 with Fins, Open StudBricks Round and Cones	Dark Bluish Gray	6×
3941	Brick Round 2 x 2 with Axle HoleBricks Round and Cones	Yellow	2×
4589	Cone 1 x 1 [No Top Groove]Bricks Round and Cones	Trans-Neon Green	6×
3048b	Brick Sloped 45° 2 x 1 Triple SmoothBricks Sloped	Black	2×
3039	Brick Sloped 45° 2 x 2Bricks Sloped	Dark Bluish Gray	1×
3039	Brick Sloped 45° 2 x 2Bricks Sloped	Yellow	1×
3038	Brick Sloped 45° 2 x 3Bricks Sloped	Black	2×
4445	Brick Sloped 45° 2 x 8Bricks Sloped	Black	2×
3684	Brick Sloped 75° 2 x 2 x 3 [Hollow Studs]Bricks Sloped	Black	1×
3665	Brick Sloped Inverted 45° 2 x 1Bricks Sloped	Dark Bluish Gray	2×
3660	Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]Bricks Sloped	Dark Bluish Gray	1×
4070	Brick Special 1 x 1 with HeadlightBricks Special	Red	2×
30526	Brick Special 1 x 2 with 2 Pins, Round Pin HolesBricks Special	Light Bluish Gray	5×
2458	Brick Special 1 x 2 with PinBricks Special	Dark Bluish Gray	8×
30414	Brick Special 1 x 4 with 4 Studs on One SideBricks Special	Black	2×
45301	Brick Wedged, Curved 16 x 4 Triple with Inner RidgesBricks Wedged	Black	6×
47753	Brick Wedged, Curved 4 x 4 No Top StudsBricks Wedged	Yellow	6×
41748	Brick Wedged, Curved 6 x 2 Left, Inner RidgesBricks Wedged	White	1×
41747	Brick Wedged, Curved 6 x 2 Right, Inner RidgesBricks Wedged	White	1×
6126a	Wave / Flame Rounded with Base PegsEnergy Effects	Trans-Neon Orange	2×
44572	Hinge Panel 2 x 4 x 3 1/3 Locking Dual 2 FingersHinges, Arms and Turntables	Black	4×
44568	Hinge Plate 1 x 4 Locking Dual 1 FingerHinges, Arms and Turntables	Light Bluish Gray	4×
30407	Hinge Plate 1 x 8 Locking with Angled Side Extensions, Rounded Plate Underside, 9 TeethHinges, Arms and Turntables	Yellow	2×
30516	Turntable 4 x 4 Locking Grooved BaseHinges, Arms and Turntables	Light Bluish Gray	1×
30658	Turntable 4 x 4 Top, LockingHinges, Arms and Turntables	Black	1×
57528	Large Figure Weapon Claw Blade, SmallLarge Buildable Figures	Red	2×
32551	Large Figure Weapon, Claw Hook with AxleLarge Buildable Figures	Light Bluish Gray	12×
4599a	Tap 1 x 1 with Hole in SpoutMinifig Accessories	Light Bluish Gray	4×
4522	Tool Hammer / Mallet LargeMinifig Shields, Weapons, & Tools	Black	1×
30377	Arm Mechanical with 2 Clips [Battle Droid]Minifig Upper Body	Light Bluish Gray	1×
53989	Arm Mechanical with Clip [Thin Support]Minifig Upper Body	Pearl Light Gray	6×
3024	Plate 1 x 1Plates	Trans-Red	2×
4477	Plate 1 x 10Plates	Black	2×
3023	Plate 1 x 2Plates	Black	2×
3023	Plate 1 x 2Plates	Light Bluish Gray	9×
3023	Plate 1 x 2Plates	Yellow	7×
3623	Plate 1 x 3Plates	Red	4×
3710	Plate 1 x 4Plates	Black	2×
3710	Plate 1 x 4Plates	White	1×
3460	Plate 1 x 8Plates	Dark Bluish Gray	2×
3832	Plate 2 x 10Plates	Light Bluish Gray	2×
2445	Plate 2 x 12Plates	Dark Bluish Gray	2×
3022	Plate 2 x 2Plates	Black	2×
3022	Plate 2 x 2Plates	Dark Bluish Gray	6×
3022	Plate 2 x 2Plates	Light Bluish Gray	4×
3022	Plate 2 x 2Plates	Red	1×
3021	Plate 2 x 3Plates	Red	2×
3020	Plate 2 x 4Plates	Light Bluish Gray	2×
3795	Plate 2 x 6Plates	Dark Bluish Gray	1×
3795	Plate 2 x 6Plates	Light Bluish Gray	1×
3034	Plate 2 x 8Plates	Dark Bluish Gray	4×
3031	Plate 4 x 4Plates	Black	1×
3031	Plate 4 x 4Plates	Dark Bluish Gray	2×
3035	Plate 4 x 8Plates	Black	4×
3958	Plate 6 x 6Plates	Dark Bluish Gray	1×
6141	Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes	Trans-Red	2×
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Plates Round Curved and Dishes	Red	1×
6019	Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]Plates Special	Light Bluish Gray	2×
2540	Plate Special 1 x 2 Side Handle [Free Ends]Plates Special	Black	4×
2540	Plate Special 1 x 2 Side Handle [Free Ends]Plates Special	Yellow	3×
48336	Plate Special 1 x 2 [Side Handle Closed Ends]Plates Special	Black	1×
3839b	Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment]Plates Special	Black	2×
4590	Plate Special 1 x 4 Offset with Bar HolesPlates Special	Dark Bluish Gray	1×
2444	Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]Plates Special	Black	1×
2444	Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]Plates Special	Dark Bluish Gray	7×
3709	Technic Plate 2 x 4 [3 Holes]Plates Special	Black	6×
3709	Technic Plate 2 x 4 [3 Holes]Plates Special	Dark Bluish Gray	8×
32001	Technic Plate 2 x 6 [5 Holes]Plates Special	Yellow	2×
3738	Technic Plate 2 x 8 [7 Holes]Plates Special	Black	2×
57796	Launcher, Technic Competition Cannon Flat Bottom [Complete Assembly]Projectiles / Launchers	Dark Bluish Gray	2×
57028c01	Projectile, Technic Competition Arrow, Liftarm Shaft with Hollow Black Rubber EndProjectiles / Launchers	Red	3×
60491	Sticker Sheet for Set 7721-1Stickers	[No Color/Any Color]	1×
52041	Crane Section 4 x 12 x 3 with 8 Pin HolesSupports, Girders and Cranes	Black	1×
3737	Technic Axle 10Technic Axles	Black	2×
32062	Technic Axle 2 NotchedTechnic Axles	Red	8×
4519	Technic Axle 3Technic Axles	Light Bluish Gray	4×
6587	Technic Axle 3 with StudTechnic Axles	Dark Bluish Gray	8×
3705	Technic Axle 4Technic Axles	Black	5×
59426	Technic Axle 5.5 with Stop [Rounded Short End]Technic Axles	Dark Bluish Gray	2×
3706	Technic Axle 6Technic Axles	Black	1×
55013	Technic Axle 8 with StopTechnic Axles	Black	2×
32525	Technic Beam 1 x 11 ThickTechnic Beams	Light Bluish Gray	6×
32009	Technic Beam 1 x 11.5 Double Bent ThickTechnic Beams	Dark Bluish Gray	2×
32009	Technic Beam 1 x 11.5 Double Bent ThickTechnic Beams	Light Bluish Gray	4×
32523	Technic Beam 1 x 3 ThickTechnic Beams	Yellow	3×
2825	Technic Beam 1 x 4 Thin with Stud ConnectorTechnic Beams	Black	4×
32316	Technic Beam 1 x 5 ThickTechnic Beams	Black	6×
32348	Technic Beam 1 x 7 Bent (4 - 4) ThickTechnic Beams	Light Bluish Gray	1×
32524	Technic Beam 1 x 7 ThickTechnic Beams	Black	2×
32271	Technic Beam 1 x 9 Bent (7 - 3) ThickTechnic Beams	Red	2×
32526	Technic Beam 3 x 5 L-Shape ThickTechnic Beams	Light Bluish Gray	2×
44224	Technic Rotation Joint Disk with Pin Hole and 3L Beam ThickTechnic Beams Special	Dark Bluish Gray	2×
44225	Technic Rotation Joint Disk with Pin and 3L Beam ThickTechnic Beams Special	Light Bluish Gray	2×
32018	Technic Brick 1 x 14 [13 Pin Holes]Technic Bricks	Black	6×
3700	Technic Brick 1 x 2 [1 Pin Hole]Technic Bricks	Light Bluish Gray	8×
32000	Technic Brick 1 x 2 [2 Pin Holes]Technic Bricks	Red	1×
32064b	Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]Technic Bricks	Black	8×
32064b	Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]Technic Bricks	Dark Bluish Gray	7×
32064b	Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]Technic Bricks	Yellow	1×
3701	Technic Brick 1 x 4 [3 Pin Holes]Technic Bricks	Dark Bluish Gray	2×
3894	Technic Brick 1 x 6 [5 Pin Holes]Technic Bricks	Black	2×
32532	Technic Brick 6 x 8 with 4 x 6 OpeningTechnic Bricks	Black	2×
3713	Technic BushTechnic Bushes	Red	10×
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes	Light Bluish Gray	5×
6538b	Technic Axle Connector Ridged [with x Hole x Orientation]Technic Connectors	Red	2×
32039	Technic Axle Connector with Axle HoleTechnic Connectors	Black	2×
32039	Technic Axle Connector with Axle HoleTechnic Connectors	Light Bluish Gray	1×
32013	Technic Axle and Pin Connector Angled #1Technic Connectors	Dark Bluish Gray	16×
32015	Technic Axle and Pin Connector Angled #5 - 112.5°Technic Connectors	Black	4×
6536	Technic Axle and Pin Connector PerpendicularTechnic Connectors	Black	3×
42003	Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesTechnic Connectors	Dark Bluish Gray	4×
32184	Technic Axle and Pin Connector Perpendicular 3L with Centre Pin HoleTechnic Connectors	Black	1×
32291	Technic Axle and Pin Connector Perpendicular DoubleTechnic Connectors	Black	1×
53586	Technic Axle and Pin Connector, Perpendicular with ExtensionTechnic Connectors	Pearl Light Gray	1×
32530	Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top]Technic Connectors	Dark Bluish Gray	4×
32187	Technic Driving Ring Extension, 4 RidgesTechnic Gears	Light Bluish Gray	8×
43093	Technic Axle Pin with Friction Ridges LengthwiseTechnic Pins	Blue	9×
3749	Technic Axle Pin without Friction Ridges LengthwiseTechnic Pins	Tan	4×
4274	Technic Pin 1/2 without Friction RidgesTechnic Pins	Light Bluish Gray	2×
32054	Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]Technic Pins	Red	6×
6558	Technic Pin Long with Friction Ridges Lengthwise, 2 Center SlotsTechnic Pins	Black	46×
2780	Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins	Black	33×
47455	Technic Rotation Joint Ball Loop with Two Perpendicular Pins with FrictionTechnic Pins	Black	4×
2991	Technic Brick 1 x 2 - 1 x 2 Angled with Bumper Holder [Closed Front]Technic Special	Dark Bluish Gray	4×
57908	Technic Brick Special 2 x 2 with 10.2mm Balls [Center Mold Indention]Technic Special	Dark Bluish Gray	1×
62712	Technic Brick Special 2 x 2 with Ball Socket Reinforced and Axle HoleTechnic Special	Dark Bluish Gray	4×
48171	Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side]Technic Special	Dark Bluish Gray	4×
48169	Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint SocketTechnic Special	Dark Bluish Gray	2×
48172	Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint SocketsTechnic Special	Black	1×
57909a	Technic Brick Special 2 x 2 with Solid Ball and Axle HoleTechnic Special	Dark Bluish Gray	2×
2723	Technic Disc 3 x 3Technic Special	Black	2×
30397	Technic Link 1 x 5Technic Special	Black	4×
3069bpr0073	Tile 1 x 2 with Engraved Code for Exo-ForceTiles	Yellow	1×
2431	Tile 1 x 4 with GrooveTiles	Red	1×
3068b	Tile 2 x 2 with GrooveTiles	Black	1×
3068b	Tile 2 x 2 with GrooveTiles	Dark Bluish Gray	1×
2412b	Tile Special 1 x 2 Grille with Bottom GrooveTiles Special	Black	3×
2412b	Tile Special 1 x 2 Grille with Bottom GrooveTiles Special	Light Bluish Gray	2×
30031	HandlebarsTransportation - Land	Light Bluish Gray	1×
78c11	Hose, Ribbed 7mm D. 11L / 8.8cmTubes and Hoses	Pearl Light Gray	2×
6070	Windscreen 5 x 2 x 1 2/3Windscreens and Fuselage	Black	1×
6070	Windscreen 5 x 2 x 1 2/3Windscreens and Fuselage	Trans-Brown	1×
53451	Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallAnimal / Creature Body Parts	Red	2×	Spare
298c02	Lever Small Base with Black LeverBars, Ladders and Fences	Yellow	1×	Spare
30377	Arm Mechanical with 2 Clips [Battle Droid]Minifig Upper Body	Light Bluish Gray	1×	Spare
6141	Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes	Trans-Red	1×	Spare
3713	Technic BushTechnic Bushes	Red	3×	Spare
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes	Light Bluish Gray	2×	Spare
4274	Technic Pin 1/2 without Friction RidgesTechnic Pins	Light Bluish Gray	1×	Spare
2780	Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins	Black	5×	Spare