How many pieces does the LEGO Aerial Defense Unit (8971-1) have?

The LEGO Aerial Defense Unit set (8971-1) contains 733 pieces. It was released in 2009 as part of the LEGO Agents theme.

How can I find missing parts for LEGO set 8971-1?

On BrickMissing you can check which parts from the LEGO Aerial Defense Unit (8971-1) you already own. Add your LEGO collection and we'll show exactly which of the 733 pieces you're missing and which you already have.

Can I build the LEGO Aerial Defense Unit 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 733 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Aerial Defense Unit from?

The LEGO Aerial Defense Unit (8971-1) belongs to the LEGO Agents theme. You can browse all Agents sets on BrickMissing to find more sets from this theme.

Aerial Defense Unit

🏷️ 8971-1•🎨 Agents•📅 2009•🧱 733 parts•Advanced

Aerial Defense Unit (8971-1) is a LEGO Agents from 2009. This page uses the available set and theme data until a fuller product description is available.

Parts Inventory

🧱 733 parts

Part	Color	Qty
Panel 1 x 2 x 3 - Solid Studs 2362a	Black	1×
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Dark Bluish Gray	16×
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Orange	1×
Wedge Plate 3 x 6 Cut Corners 2419	Dark Blue	1×
Tile Special 1 x 2 with Handle 2432	Dark Bluish Gray	7×
Tile Special 1 x 2 with Handle 2432	Light Bluish Gray	1×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] 2444	Yellow	8×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] 2444	Black	1×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] 2444	Light Bluish Gray	2×
Brick 1 x 1 x 5 with Blocked Open or Hollow Stud 2453a	Brown	2×

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Tile Special 1 x 2 with Handle	2432	Light Bluish Gray	1×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]	2444	Yellow	8×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]	2444	Black	1×
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]	2444	Light Bluish Gray	2×
Brick 1 x 1 x 5 with Blocked Open or Hollow Stud	2453a	Brown	2×
Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges	2454a	Black	2×
Brick 2 x 6	2456	Dark Bluish Gray	2×
Brick Special 1 x 2 with Pin	2458	Light Bluish Gray	1×
Plate Special 2 x 2 with Pin on Bottom	2476a	Light Bluish Gray	6×
Plate Special 1 x 2 Side Handle [Free Ends]	2540	Dark Bluish Gray	2×
Plate Special 1 x 2 Side Handle [Free Ends]	2540	Black	12×
Tile Special 1 x 1 with Clip and Straight Tips	2555	Red	1×
Tile Special 1 x 1 with Clip and Straight Tips	2555	Black	2×
Technic Brick 1 x 10 [9 Pin Holes]	2730	Black	6×
Technic Pin with Friction Ridges Lengthwise and Center Slots	2780	Black	24×
Brick Special 1 x 2 with Grille	2877	Light Bluish Gray	18×
Brick Special 1 x 1 with Handle	2921	Light Bluish Gray	1×
Lever Small Base with Black Lever	298c02	White	1×
Lever Small Base with Black Lever	298c02	Red	2×
Brick 2 x 2	3003	Dark Blue	3×
Handlebars	30031	Light Bluish Gray	1×
Brick 1 x 2	3004	Reddish Brown	5×
Brick 1 x 1	3005	Dark Bluish Gray	4×
Brick 1 x 8	3008	Black	1×
Brick 1 x 6	3009	Dark Bluish Gray	1×
Brick 1 x 4	3010	Dark Bluish Gray	6×
Equipment Binoculars	30162	Dark Bluish Gray	1×
Plant, Round 1 x 1 - 3 Bamboo Leaves	30176	Light Bluish Gray	1×
Plate 2 x 4	3020	Light Bluish Gray	4×
Plate 2 x 3	3021	Yellow	7×
Plate 2 x 2	3022	Dark Bluish Gray	5×
Plate 1 x 2	3023	Light Bluish Gray	8×
Plate 1 x 1	3024	Trans-Green	3×
Plate 1 x 1	3024	Trans-Red	3×
Equipment Space Binoculars / Scanner / Electrobinoculars	30304	Dark Bluish Gray	1×
Plate 4 x 6	3032	Dark Bluish Gray	1×
Plate 4 x 6	3032	Black	5×
Propeller 3 Blade 9 Diameter	30332	Black	1×
Plate 2 x 8	3034	Dark Bluish Gray	6×
Plate 2 x 8	3034	Black	8×
Plate 6 x 8	3036	Dark Bluish Gray	1×
Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder	30367b	Red	1×
Hinge Brick 2 x 2 Locking with 1 Finger Vertical and Axle Hole [X Opening]	30389c	Yellow	1×
Slope 45? 2 x 2	3039	Dark Blue	1×
Slope 45° 2 x 1 with Bottom Pin	3040b	Dark Bluish Gray	6×
Slope 45° 2 x 1 with Bottom Pin	3040b	Dark Brown	12×
Brick Round 1 x 1 Open Stud	3062b	Reddish Brown	2×
Tile 2 x 2 with Groove	3068b	Dark Blue	14×
Tile 2 x 2 with Groove	3068b	Black	3×
Tile 1 x 2 with Red 82, Yellow and White Gauges Print	3069bpr0101	Light Bluish Gray	1×
Tile 1 x 1 with White and Red Gauge Print	3070bpr0007	Light Bluish Gray	1×
Tyre 14 x 4 Smooth Small Single	3139	Black	2×
Technic Brick 1 x 2 [2 Pin Holes]	32000	Light Bluish Gray	2×
Technic Reel 3 x 2	32012	Yellow	2×
Technic Axle and Pin Connector Angled #1	32013	Black	2×
Technic Axle and Pin Connector Angled #5 - 112.5°	32015	Black	1×
Technic Brick 1 x 14 [13 Pin Holes]	32018	Light Bluish Gray	2×
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]	32054	Light Bluish Gray	8×
Technic Beam 3 x 3 L-Shape Thin	32056	Light Bluish Gray	2×
Technic Axle 2 Notched	32062	Red	4×
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin	32064a	Dark Bluish Gray	14×
Technic Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller)	32125	Light Bluish Gray	4×
Technic Beam 2 x 4 L-Shape Thick	32140	Dark Bluish Gray	4×
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening]	32269	Tan	1×
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening]	32269	Black	2×
Technic Gear 12 Tooth Double Bevel	32270	Black	5×
Technic Beam 1 x 3 Thick	32523	Lime	1×
Technic Beam 1 x 7 Thick	32524	Light Bluish Gray	8×
Technic Pin Connector Plate with One Hole (Single on Bottom)	32529	Black	2×
Slope 33° 3 x 2	3298	Red	1×
Brick 1 x 3	3622	Reddish Brown	3×
Plate 1 x 6	3666	Black	9×
Plate 1 x 6	3666	Light Bluish Gray	5×
Technic Pin without Friction Ridges Lengthwise	3673	Light Bluish Gray	1×
Technic Brick 1 x 2 [1 Pin Hole]	3700	Yellow	2×
Technic Brick 1 x 2 [1 Pin Hole]	3700	Black	2×
Technic Brick 1 x 4 [3 Pin Holes]	3701	Dark Bluish Gray	5×
Technic Brick 1 x 16 [15 Pin Holes]	3703	Black	2×
Technic Axle 4	3705	Black	2×
Technic Axle 6	3706	Black	2×
Technic Plate 2 x 4 [3 Holes]	3709	Dark Bluish Gray	1×
Plate 1 x 4	3710	Reddish Brown	2×
Plate 1 x 4	3710	Dark Blue	10×
Technic Gear Rack 1 x 4	3743	Light Bluish Gray	2×
Slope Inverted 33° 3 x 2 [Connections between Studs]	3747b	Black	1×
Technic Axle Pin without Friction Ridges Lengthwise	3749	Tan	19×
Plate Special 1 x 2 with 1 Stud without Groove (Jumper)	3794a	Dark Red	1×
Plate 2 x 6	3795	Yellow	5×
Hinge Brick 1 x 4 [Upper]	3830	Black	2×
Hinge Brick 1 x 4 [Lower]	3831	Black	2×
Technic Brick 1 x 6 [5 Pin Holes]	3894	Black	1×
Technic Brick 1 x 6 [5 Pin Holes]	3894	Red	2×
Hinge Brick 1 x 2 Base	3937	Black	1×
Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole	3940b	Dark Bluish Gray	2×
Brick Round 2 x 2 with Axle Hole	3941	Trans-Neon Orange	1×
Brick Round 2 x 2 with Axle Hole	3941	Black	1×
Antenna 1 x 4 with Rounded Top	3957a	Black	1×
Weapon Gun / Torch (Space) [with Grooves]	3959	Light Bluish Gray	2×
Equipment Radio [Extended Handle, Compact Speaker Grille]	3962b	Black	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Dark Bluish Gray	2×
Technic Beam 1 x 9 Thick	40490	Dark Bluish Gray	4×
Brick Special 1 x 1 with Headlight	4070	Light Bluish Gray	4×
Seat / Chair 2 x 2 with Center Sprue Mark	4079b	Red	3×
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]	4081b	Light Bluish Gray	2×
Plate Special 1 x 1 with Clip Vertical [Thick U Clip]	4085c	White	4×
Tile Round 2 x 2 with Bottom Cross	4150	Light Bluish Gray	2×
Tile 1 x 8 with Groove	4162	Dark Blue	15×
Tile 1 x 8 with Groove	4162	Dark Bluish Gray	2×
Technic Beam 1 x 2 Thin	41677	Red	4×
Windscreen 8 x 6 x 2 Curved	41751	Dark Blue	2×
Wedge Curved Inverted 6 x 2 Right	41764	Dark Bluish Gray	1×
Wedge Curved Inverted 6 x 2 Left	41765	Dark Bluish Gray	1×
Wedge 4 x 2 Right	41767	Dark Bluish Gray	1×
Wedge 4 x 2 Left	41768	Dark Bluish Gray	1×
Wedge Plate 4 x 2 Right	41769	Black	1×
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes	42003	Yellow	10×
Brick Curved 6 x 1	42022	Black	2×
Brick Curved 6 x 1 Inverted	42023	Black	2×
Wheel 11 x 8 with Center Groove	42610	Light Bluish Gray	2×
Technic Pin 1/2	4274	Black	16×
Plate 2 x 16	4282	Black	3×
Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°]	4285b	Black	1×
Slope Inverted 34° 3 x 1 with Internal Stopper	4287b	Sand Blue	2×
Technic Axle Pin with Friction Ridges Lengthwise	43093	Black	10×
Equipment Camera with Side Sight [aka Space Gun]	4360	Black	1×
Wedge Curved Inverted 6 x 4	43713	Dark Bluish Gray	1×
Wedge Plate 3 x 2 Right	43722	Light Bluish Gray	2×
Wedge Plate 3 x 2 Left	43723	Light Bluish Gray	2×
Support Round 1 x 1 x 6 Solid Pillar	43888	Dark Bluish Gray	2×
Animal Body Part, Snake / Serpent Body, Basilisk	43936	Black	2×
Hinge Plate 1 x 4 Locking Dual 1 Finger	44568	Light Bluish Gray	1×
Slope 75° 2 x 1 x 3 with Hollow Stud	4460b	Dark Brown	12×
Slope Curved 2 x 2 No Studs - 3 Recessed Side Ports	44675	Dark Blue	5×
Bracket 1 x 2 - 2 x 2	44728	Dark Blue	4×
Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm]	4623	Yellow	2×
Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm]	4623	Light Bluish Gray	1×
Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm]	4623	Black	1×
Wheel 8 x 6	4624	Light Bluish Gray	2×
Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End	47457	Dark Bluish Gray	1×
Rock Panel 2 x 4 x 6	47847	Reddish Brown	2×
Panel 1 x 2 x 1 [Square Corners]	4865a	Trans-Red	1×
Wheel Holder 2 x 2 Thin with Split Wheel Clip Pins	4870	Light Bluish Gray	1×
Plate Special 1 x 1 with Tooth	49668	Pearl Light Gray	8×
Slope Curved 3 x 1 No Studs	50950	Dark Bluish Gray	2×
Dish 10 x 10 Inverted (Radar) with Hollow Studs	50990a	Trans-Neon Green	1×
Tyre 17.5 x 6 with Shallow Staggered Treads	51011	Black	2×
Arm Mechanical with Clip [Thin Support]	53989	Pearl Light Gray	2×
Slope Curved 8 x 8 x 2 Double	54095	Dark Blue	4×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Dark Blue	6×
Wedge Plate 6 x 3 Right	54383	Dark Blue	2×
Wedge Plate 6 x 3 Left	54384	Dark Blue	2×
Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes	55982	Light Bluish Gray	2×
String Cord Thin (0.5mm) 100cm	56823c100	Black	2×
Technic Axle 5.5 with Stop [Rounded Short End]	59426	Dark Bluish Gray	2×
Cone 1 x 1 [Top Groove]	59900	Yellow	10×
Cone 1 x 1 [Top Groove]	59900	Trans-Orange	2×
Cone 1 x 1 [Top Groove]	59900	Orange	1×
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]	6019	Red	4×
Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips]	60470a	White	2×
Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips]	60470a	Yellow	1×
Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth	60471	Red	1×
Equipment Hose Nozzle / Gun with Side String Hole Simplified	60849	Black	4×
Brick Curved 1 x 2 x 1 1/3 with Curved Top	6091	Dark Bluish Gray	2×
Hinge Brick 2 x 2 Top Plate Thin	6134	Red	1×
Slope 18° 2 x 1 x 2/3 with 4 Slots / Grate	61409	Yellow	6×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Neon Orange	1×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Yellow	3×
Plate Round 1 x 1 with Solid Stud	6141	Light Bluish Gray	8×
Plate Round 1 x 1 with Solid Stud	6141	Trans-Red	2×
Plate Round 1 x 1 with Solid Stud	6141	Yellow	16×
Slope Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges]	61678	Black	6×
Plate Special 4 x 4 with Studs on One Edge [Plain]	6179	Black	1×
Plate Special 4 x 6 with Studs on 3 Edges	6180	Black	2×
Technic Universal Joint 3L [Complete Assembly]	61903	Light Bluish Gray	2×
Brick Special 2 x 2 with Pin and Axle Hole	6232	Dark Bluish Gray	1×
Tail Shuttle	6239	Black	1×
Windscreen 8 x 6 x 4 with Locking Dual 2 Fingers	62694	Trans-Brown	1×
Plate Special 2 x 16 with Angled Side Extensions and Hole (Rotor Blade)	62743	Black	6×
Weapon Lightsaber Hilt with Bottom Ring	64567	Light Bluish Gray	1×
Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3	64644	Black	4×
Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3	64644	Orange	1×
Technic Axle and Pin Connector Perpendicular	6536	Dark Bluish Gray	2×
Technic Axle and Pin Connector Perpendicular	6536	Light Bluish Gray	2×
Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle)	6553	Dark Bluish Gray	1×
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots	6558	Black	4×
Plate Special 1 x 6 with Train Wagon End Fence	6583	Black	1×
Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes	6585	Black	1×
Technic Axle 3 with Stud	6587	Dark Bluish Gray	19×
Technic Gear 12 Tooth Bevel	6589	Tan	2×
Technic Beam 1 x 3 Thin	6632	Yellow	4×
Hose, Ribbed 7mm D. 11L / 8.8cm	78c11	Pearl Light Gray	1×
Technic Rubber Belt 24mm	85544	Red	1×
Sticker Sheet for Set 8971-1	86387	Unknown	1×

Build DNA

Parts inventory insights for Aerial Defense Unit

733 pieces puts this build +70% against the average Agents set and +136% against the average 2009 release.

LEGOAGENTS

Vs average Agents set

+70%+301 parts

This set733

Average set432

Average Agents set: 432 pieces across 26 other sets.

Vs average 2009 set

+136%+422 parts

This set733

Average set311

Average 2009 set: 311 pieces across 241 other sets.

Color profile

22different colors

Dominant color

Black

Black180x

26%

Dark Bluish Gray130x

19%

Light Bluish Gray115x

16%

Yellow74x

11%

Unique parts

4.1 pieces per unique type

169

Repeat factor

Average pieces per unique type.

Most used part

Plate Round 1 x 1 with Solid Stud

30x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩169unique parts🎨22different colors📊33.3avg. parts per color🏆30×Plate Round 1 x 1 with Solid Stud

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