How many pieces does the LEGO Combat Crawler X2 (7721-1) have?

The LEGO Combat Crawler X2 set (7721-1) contains 581 pieces. It was released in 2007 as part of the LEGO Exo-Force theme.

How can I find missing parts for LEGO set 7721-1?

On BrickMissing you can check which parts from the LEGO Combat Crawler X2 (7721-1) you already own. Add your LEGO collection and we'll show exactly which of the 581 pieces you're missing and which you already have.

Can I build the LEGO Combat Crawler X2 with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 581 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Combat Crawler X2 from?

The LEGO Combat Crawler X2 (7721-1) belongs to the LEGO Exo-Force theme. You can browse all Exo-Force sets on BrickMissing to find more sets from this theme.

Combat Crawler X2

7721-1 Exo-Force 2007 581 parts 3.2% catalog rarity Intermediate

The EXO-FORCE faces a formidable threat with the Combat Crawler X2 (7721-1), a 2007 release from the Exo-Force theme. This menacing machine operates as two distinct battle units, presenting a dual challenge on Sentai Mountain and within the Golden City. In its combined configuration, the crawler boasts multiple clawed legs for traversing difficult terrain, incorporating a prison capture cage for enemy combatants. A powerful firing cannon, featuring a spring-loaded Technic missile, is mounted prominently for long-range assaults. When direct engagement intensifies, its front section detaches, transforming into an autonomous robot battle machine. Ryo, equipped with his own missile-launching strike flyer, must confront both elements of this advanced menace, employing hinge plates for his flyer's wing articulation to evade attacks.

Parts Inventory

🧱 581 parts

Showing the first 12 rows of the parts list (581 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Light Bluish Gray	2×	€0,06 View at LEGO → View
Black	3×	€0,06 View at LEGO → View
Dark Bluish Gray	7×	Check price → View
Black	1×	Check price → View
Dark Bluish Gray	2×	€0,36 View at LEGO → View
Black	2×	€0,29 View at LEGO → View
Dark Bluish Gray	8×	Check price → View
Yellow	3×	€0,07 View at LEGO → View
Black	4×	€0,07 View at LEGO → View
Black	2×	€0,21 View at LEGO → View
Black	33×	Check price → View
Black	4×	€0,21 View at LEGO → View

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Catalog rarity

How common are the parts in Combat Crawler X2?

3.2%Low rarity

more commonless common

5 of 156 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

5.2%

All sets

6.7%

Least common in our catalog

Crane Section 4 x 12 x 3 · Black · only this set in our catalogSticker Sheet for Set 7721-1 · Unknown · only this set in our catalogHinge Panel 2 x 4 x 3 1/3 Locking Dual 2… · Black · 2 sets in our catalog

How we calculate this →