GPT03
Halo Building Box
- Year released
- 2020
- Year discontinued
- —
- Pieces
- 450
- Figures
- 2
- Brand era
- MegaConstrux
- Weight
- —
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Inventory
Minifigures2 logged· 2 types
- ×1
Figure, Halo: Spartan Gungnir, RedFIG-GPT03-AMULMulticolored - ×1
Figure, Halo: Spartan EVA, BlueFIG-GPT03-BMULMulticolored
Parts402 logged· 109 types
- ×2
Plate 2 x 2 with axlesAM19397APGGray, Steel - ×6
Brick 1 x 1 with side studMA07629APGGray, Steel - ×6Brick 1 x 1 with side studMA07629AXUGreen, Light Olive Drab (Metallic)
- ×2
Brick 1 x 1 roundAM00910ZDYellow (Translucent) - ×6
Plate 2 x 6MA1480AXUGreen, Light Olive Drab (Metallic) - ×1
Plate 1 x 5MA07475AXUGreen, Light Olive Drab (Metallic) - ×6
Slope brick 45 1 x 2 inverseMA1417AXUGreen, Light Olive Drab (Metallic) - ×9
Slope brick 33 1 x 3MA1323AXUGreen, Light Olive Drab (Metallic) - ×1
Container: crate 3 x 2 x 3, lidAM18670MMGray, Dark (Metallic) - ×1
Weapon, Firearm: UNSC assault rifle modular ammunition readoutAM80869MMGray, Dark (Metallic) - ×1
Shield, Covenant Deployable Cover BaseAM18168MMGray, Dark (Metallic) - ×1
Slope brick 45 1 x 2 inverse with axle, rightAM17065APGGray, Steel - ×1
Weapon, Vehicle: medium gun on horizontal clips, handles, type 01AM18253MMGray, Dark (Metallic) - ×9
Brick 1 x 2 stoneMA02929AXUGreen, Light Olive Drab (Metallic) - ×1
Weapon, Firearm: M19 rocket launcherAM19772JZGreen, Army - ×1
Miscellaneous: blok separator ''building tool''AM80855MCXOrange, Marigold - ×1
Windscreen 4 x 1 x 2 rounded double convexAM17002AAVBlue, Medium (Translucent) - ×1
Slope brick 45 1 x 2 doubleAM19165AXUGreen, Light Olive Drab (Metallic) - ×9
Slope brick 45 2 x 2MA10273AXUGreen, Light Olive Drab (Metallic) - ×4
Wall 2 x 6 x 3 open frame with cylindrical crossbeamsAM06618MMGray, Dark (Metallic) - ×1
Connector: pipe, small 3 studs longAM72233APGGray, Steel - ×1
Container: crate 3 x 2 x 3AM18669MMGray, Dark (Metallic) - ×1
Weapon, Firearm: pistol, automaticAM79624KMGray, Dim (Metallic) - ×6
Engine component: intake turbine 2 x 2MA17010APGGray, Steel - ×1
Slope Brick, Halo DecalAS-GMB80-02MULMulticolored - ×1
Plate 2 x 2 with handleMA18329AXUGreen, Light Olive Drab (Metallic) - ×2
Plate 2 x 12MA1172MMGray, Dark (Metallic) - ×2
Connector: pin, smallAM17003MMGray, Dark (Metallic) - ×9
Brick 1 x 4MA01087ANWSand, Dark (Camo) - ×9Brick 1 x 4MA01087AXUGreen, Light Olive Drab (Metallic)
- ×1
Bracket 1 x 1 - 1 x 1 with studAM04428AXUGreen, Light Olive Drab (Metallic) - ×1
Bar 1 x 1 x 1 with perpendicular handlesAM18287APGGray, Steel - ×1
Slope brick 25 1 x 2 corner, rightAM17130AXUGreen, Light Olive Drab (Metallic) - ×1
Tile 1 x 3 with raised offset handleAM17067APGGray, Steel - ×9
Plate 2 x 2MA03773AXUGreen, Light Olive Drab (Metallic) - ×1
Plate 3 x 6 with cutoutsAM17063AXUGreen, Light Olive Drab (Metallic) - ×2
Wheel, Halo with TireAS-GMB80-05MULMulticolored - ×1
Slope Brick, Halo DecalAS-GMB80-03MULMulticolored - ×1
Weapon, Vehicle: M41 light anti-aircraft gunAM18158MMGray, Dark (Metallic) - ×6
Plate 1 x 2 with two studs on side, descendingMA76467AXUGreen, Light Olive Drab (Metallic) - ×6
Turntable 2 x 2 topMA03484FBlack - ×9
Brick 2 x 2 roundMA1320APGGray, Steel - ×6
Tile 2 x 2MA0948AXUGreen, Light Olive Drab (Metallic) - ×2
Wheel, Halo with TireAS-GMB80-04MULMulticolored - ×1
Weapon, Firearm: UNSC Bulldog ShotgunAM80853MMGray, Dark (Metallic) - ×2
Gear: traffic coneAM15065JUOrange, Smoky - ×1
Weapon, Firearm: M45D Tactical ShotgunAM74941KMGray, Dim (Metallic) - ×6
Turntable 2 x 2 baseMA03485AXUGreen, Light Olive Drab (Metallic) - ×2
Plate 2 x 8MA08483AXUGreen, Light Olive Drab (Metallic) - ×6
Brick 1 x 1 roundMA0910AXUGreen, Light Olive Drab (Metallic) - ×2
Plate 1 x 3 with offset handleAM17116MMGray, Dark (Metallic) - ×6
Plate 1 x 1 with horizontal clipMA74415AXUGreen, Light Olive Drab (Metallic) - ×6
Slope brick 33 1 x 2MA04430FBlack - ×9
Brick 2 x 2MA09023AXUGreen, Light Olive Drab (Metallic) - ×9Brick 2 x 2MA09023MMGray, Dark (Metallic)
- ×8
Brick 1 x 2 with side studsMA17502AXUGreen, Light Olive Drab (Metallic) - ×1
Slope brick 45 1 x 2 inverse with axle, leftAM17064APGGray, Steel - ×1
Plate 8 x 8, newMA18556MMGray, Dark (Metallic) - ×1
Tile, Halo DecalAS-GMB80-01MULMulticolored - ×1
Weapon, Firearm: UNSC assault rifle w/ ammo readout mountingAM80861MMGray, Dark (Metallic) - ×1
Tile 1 x 2 without corner, leftAM74299AXUGreen, Light Olive Drab (Metallic) - ×6
Tile 1 x 2MA22501AXUGreen, Light Olive Drab (Metallic) - ×2
Weapon, Exotic: muzzle flash, cone shapedAM79770KCOrange (Translucent) - ×1
Plate 4 x 6MA17055AXUGreen, Light Olive Drab (Metallic) - ×1Plate 4 x 6MA17055APGGray, Steel
- ×9
Slope brick 45 2 x 2 inverseMA1154AXUGreen, Light Olive Drab (Metallic) - ×2
Weapon, Firearm: grenade, fragmentation, type 01AM19202JZGreen, Army - ×1
Connector: pin, small with hand gripAM76060FBlack - ×3
Plate 1 x 3 with hollow studsMA72600AXUGreen, Light Olive Drab (Metallic) - ×2
Plate 2 x 3 wedge with mudguard, leftAM17001AXUGreen, Light Olive Drab (Metallic) - ×2
Plate 2 x 3 wedge with mudguard, rightAM17000AXUGreen, Light Olive Drab (Metallic) - ×1
Weapon, Firearm: UNSC assault rifleAM79605FBlack - ×6
Brick 1 x 1MA01086AXUGreen, Light Olive Drab (Metallic) - ×1
Halo Energy Shield, Light BlueAS-FMM88-01MULMulticolored - ×2
Slope plate 2 x 1MA09835AXUGreen, Light Olive Drab (Metallic) - ×2
Plate 2 x 6 irregularAM76357ANWSand, Dark (Camo) - ×9
Plate 2 x 4MA09493AXUGreen, Light Olive Drab (Metallic) - ×9
Plate 1 x 4MA09593ANWSand, Dark (Camo) - ×9Plate 1 x 4MA09593AXUGreen, Light Olive Drab (Metallic)
- ×1
Connector: pin with double clipAM18260APGGray, Steel - ×6
Tile 1 x 2 with lateral notchesMA09198MMGray, Dark (Metallic) - ×2
Weapon, Firearm: blast deflector, light, horizontal clipAM16636AXUGreen, Light Olive Drab (Metallic) - ×1
Tile 1 x 2 without corner, rightAM74300AXUGreen, Light Olive Drab (Metallic) - ×1
Slope brick 25 1 x 2 corner, leftAM17129AXUGreen, Light Olive Drab (Metallic) - ×6
Plate 1 x 2MA09393MMGray, Dark (Metallic) - ×6Plate 1 x 2MA09393AXUGreen, Light Olive Drab (Metallic)
- ×3
Slope brick 33 1 x 2 with studs on slopeMA04429AXUGreen, Light Olive Drab (Metallic) - ×9
Brick 2 x 4MA09033AXUGreen, Light Olive Drab (Metallic) - ×9Brick 2 x 4MA09033ANWSand, Dark (Camo)
- ×9Brick 2 x 4MA09033MMGray, Dark (Metallic)
- ×1
Weapon, Melee: sword, energy type 01AM16982AAVBlue, Medium (Translucent) - ×2
Plate 2 x 3MA03772AXUGreen, Light Olive Drab (Metallic) - ×1
Weapon, Firearm: SMG with mounting point for suppressorAM79281FBlack - ×6
Slope brick 45 1 x 1MA15258AXUGreen, Light Olive Drab (Metallic) - ×9
Brick 1 x 2 with vertical cutout and six notchesMA1133APGGray, Steel - ×6
Gear: sandbag, heavyAM74718AUGSand, Pale - ×1
Slope brick 45 4 x 2 inverse with axles & roll barAM17159APGGray, Steel - ×1
Weapon, Firearm: Halo Shock RifleAM80852ALGGray, Dark Smoke - ×2
Weapon, Exotic: muzzle flash, wide burstAM79769KCOrange (Translucent) - ×1
Plate 2 x 4 with rounded right cornerMA03324AXUGreen, Light Olive Drab (Metallic) - ×1
Tile 2 x 2 without cornersMA18543MMGray, Dark (Metallic) - ×2
Slope brick 25 1 x 2MA17128AXUGreen, Light Olive Drab (Metallic) - ×1
Plate 2 x 4 with rounded left cornerMA03323AXUGreen, Light Olive Drab (Metallic) - ×9
Brick 1 x 2MA09013ANWSand, Dark (Camo) - ×9Brick 1 x 2MA09013AXUGreen, Light Olive Drab (Metallic)
- ×6
Plate 1 x 2 with one stud, centeredMA07590AXUGreen, Light Olive Drab (Metallic) - ×6
Slope brick 45 1 x 2MA01322AXUGreen, Light Olive Drab (Metallic) - ×4
Plate 7 x 8 irregularMA73222ANWSand, Dark (Camo) - ×1
Container: crate 2 x 2 x 2 open frameAM18273MMGray, Dark (Metallic)
Instructions1 logged· 1 type
- ×1Instruction booklet for GPT03 Halo Building BoxINS-GPT03MULMulticolored
Packaging1 logged· 1 type
- ×1Original packaging for GPT03 Halo Building BoxBOX-GPT03MULMulticolored
Item catalogued 2026-05-08. No community contributions yet. Be the first to suggest an edit, image, or inventory line.
Sources & cross-references (2)
- Mattel customer serviceGPT03 ↗
- Mattel instruction PDFhttps://service.mattel.com/instruction_sheets/GPT03.pdf ↗