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Compatible with / aftermarket for products by Mattel, Inc. Not affiliated with, endorsed, or sponsored by Mattel, Mega Brands, or any franchise rights-holder.

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GRG42 · Ultimate Story Builders · BlokBlok

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Sets
Story Builders
GRG42

GRG42

Ultimate Story Builders

Year released: 2020
Year discontinued: —
Pieces: 325
Figures: —
Brand era: MegaConstrux
Weight: —
Retail price (USD): —

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Inventory

Looks complete (324/325 parts) — not verified

Parts324 logged· 125 typesSort:

×4Tile 1 x 2AM022501EWhite
×1

Item catalogued 2026-05-08. No community contributions yet. Be the first to suggest an edit, image, or inventory line.

Instructions

OfficialInstructions on service.mattel.com↗

Sources & cross-references (3)

Bloksforum threadhttps://bloksforum.freeforums.net/thread/4029/grg42-ultimate-story-builders-2020 ↗
Mattel customer serviceGRG42 ↗
Mattel instruction PDFhttps://service.mattel.com/instruction_sheets/GRG42.pdf ↗

Tile 1 x 2AM022501

BYEYellow, Lemon

×1Tile 1 x 2AM022501DHBrown

×1Brick 1 x 2 half domeAM17835BBlue

×1Connector: pin, short with clipAM17062KMGray, Dim (Metallic)

×1Brick 1 x 2 stone, full lips, wide eyes looking to the leftAS-GRG42-09BYEYellow, Lemon

×1Brick 1 x 2 stone, full lips, wide eyes looking to the leftAS-GRG42-09MULMulticolored

×1Plate 2 x 2AM03773FBlack

×2Plate 2 x 2AM03773AENMagenta, Rich

×8Plate 2 x 2AM03773AMCRed, Flame

×9Plate 2 x 2AM03773ASUTeal

×2Plate 2 x 2AM03773BDGGray, Dark (Flake)

×8Plate 2 x 2AM03773BLGGray, Dull

×2Plate 1 x 1 round with horizontal pegAM01312BDGGray, Dark (Flake)

×7Cone 2 x 1 x 2AM1404ANYYellow, Electric

×6Slope brick 45 1 x 2AM01322BOROrange, Bright

×2Slope brick 45 1 x 2AM01322AMCRed, Flame

×2Slope brick 45 1 x 2AM01322AENMagenta, Rich

×5Brick 1 x 2AM09013BLGGray, Dull

×5Brick 1 x 2AM09013BMGGreen, Forest

×1Brick 1 x 2AM09013FBlack

×6Brick 1 x 2AM09013AENMagenta, Rich

×2Brick 1 x 2AM09013ANMBrown, Golden

×6Brick 1 x 2AM09013ANYYellow, Electric

×1Brick 1 x 2AM09013AVLGreen with Speckles, Granny Smith

×8Brick 1 x 2AM09013BBlue

×1Plate 1 x 2 with small axle pinAM18221BBlue

×2Slope 33 1 x 3 Stud on TopAM01323AENMagenta, Rich

×2Slope 45 2 x 1AM03019AENMagenta, Rich

×2Brick 1 x 1 with studs on adjacent sidesAM18286ANMBrown, Golden

×8Plate 1 x 3AM01314ASUTeal

×3Brick Modified 1 x 2 with side studsAM17502BBlue

×1Brick Modified 1 x 2 with side studsAM17502BLGGray, Dull

×2Brick Modified 1 x 2 with side studsAM17502AMCRed, Flame

×1Tile Textured 1 x 2 with lateral notchesAM09198BLGGray, Dull

×3Plate 2 x 8AM08483FBlack

×1Plate 2 x 8AM08483ASUTeal

×1Brick 2 x 2 with projecting side clips & blue coverallsAS-GRG42-08ASUTeal

×1Brick 2 x 2 with projecting side clips & blue coverallsAS-GRG42-08MULMulticolored

×1Brick 1 x 2 with side studAM18601ANMBrown, Golden

×1Connector: pin, long with clipAM19617BLGGray, Dull

×4Slope Brick 1 x 1 with half-curved topAM07659AMCRed, Flame

×1Wheel, Steering: round with three-point frameAM18220FBlack

×6Plate 1 x 6AM09292BBlue

×5Brick 1 x 3AM16384AMCRed, Flame

×3Plate 2 x 2 faceted with one central studAM73009BOROrange, Bright

×1Slope brick 33 2 x 3 inverseAM01139AVLGreen with Speckles, Granny Smith

×2Slope 36 2 x 1AM18549EWhite

×1Tile 2 x 2AM0948BBlue

×5Tile 2 x 2AM0948BLGGray, Dull

×1Brick 1 x 1AM01086BOROrange, Bright

×5Brick 1 x 1AM01086AENMagenta, Rich

×2Plate 2 x 2 with horizontal clipsAM18328FBlack

×2Brick 1 x 1 with rounded top and side studAM76767AVLGreen with Speckles, Granny Smith

×1Foliage: tuft of grass on small connector pinAM76017FBlack

×2Brick 1 x 1 w/ Stud on 1 Side & Open Top & BackAM07629AENMagenta, Rich

×2Brick 1 x 1 w/ Stud on 1 Side & Open Top & BackAM07629BLGGray, Dull

×2Brick 1 x 2 round topAM17834BBlue

×2Slope brick 45 2 x 2 inverseAM01154AENMagenta, Rich

×1Slope brick 45 2 x 2 inverseAM01154DHBrown

×1Slope brick 45 2 x 2 inverseAM01154ANYYellow, Electric

×4Slope brick 45 2 x 2 inverseAM01154AMCRed, Flame

×2Antenna 8H, type 01AM09323BLGGray, Dull

×4Brick Round 1 x 1 with Solid StudAM0910BYEYellow, Lemon

×1Brick 2 x 4AM09033AMCRed, Flame

×1Brick 2 x 4AM09033EWhite

×5Brick 2 x 4AM09033BMGGreen, Forest

×5Brick 2 x 4AM09033BBlue

×1Brick 2 x 4AM09033ASUTeal

×1Brick 1 x 2 stone, wide blue eyes, fringe of black hairAS-GRG42-07MULMulticolored

×1Brick 1 x 2 stone, wide blue eyes, fringe of black hairAS-GRG42-07AUGSand, Pale

×4Plate 2 x 2 with wheels holderAM17391BLGGray, Dull

×1Brick 2 x 2 with projecting side clips & sheriff's badgeAS-GRG42-10MULMulticolored

×1Brick 2 x 2 with projecting side clips & sheriff's badgeAS-GRG42-10NMRose

×4Tile 1 x 1 round dome, tallAM78219ZDYellow (Translucent)

×1Plate Round 1 x 1 with Solid StudAM01113AMCRed, Flame

×2Brick 1 x 2 half-roundAM03325BMGGreen, Forest

×1Brick 1 x 4AM01087AENMagenta, Rich

×1Plate 1 x 2AM09393BYEYellow, Lemon

×5Plate 1 x 2AM09393BOROrange, Bright

×1Plate 1 x 2AM09393BBlue

×1Hinge tile 2 x 2 with 4 fingersAM09268AVLGreen with Speckles, Granny Smith

×1Bracket 1 x 2 - 1 x 2 with studsAM18014ANMBrown, Golden

×5Brick 2 x 2 RoundAM01320EWhite

×1Plate 4 x 4 round with center holeAM76367ANMBrown, Golden

×2Slope 45 1 x 1AM15258AENMagenta, Rich

×1Slope brick 45 2 x 1 double / 60AM19061ANYYellow, Electric

×3Slope brick 45 2 x 1 double / 60AM19061AVLGreen with Speckles, Granny Smith

×1Bar 1 x 4AM09931BLGGray, Dull

×2Plate 2 x 3AM03772ASUTeal

×7Plate 2 x 3AM03772BYEYellow, Lemon

×1Brick 2 x 2 with projecting side clipsAM80900AVLGreen with Speckles, Granny Smith

×1Slope Plate 25 2 x 1 x 2AM78189BBlue

×8Wheel, Assembled, Small: single stud on hub, smooth tireAS-GRG42-12APGGray, Steel

×8Wheel, Assembled, Small: single stud on hub, smooth tireAS-GRG42-12MULMulticolored

×1Panel 1 x 1 x 2AM07228AGYClear, Smoky (Translucent)

×2Panel 1 x 1 x 2AM07228AMCRed, Flame

×1Panel 1 x 1 x 4AM17521AGYClear, Smoky (Translucent)

×2Body part: horn/tooth on small pinAM72384FBlack

×2Slope brick 25 1 x 4AM16959AVLGreen with Speckles, Granny Smith

×1Antenna, whip on small pegAM18222FBlack

×1Brick 2 x 2 with projecting side clips & robotic chest displayAS-GRG42-11BLGGray, Dull

×1Brick 2 x 2 with projecting side clips & robotic chest displayAS-GRG42-11MULMulticolored

×4Slope brick 36 1 x 1AM17127BOROrange, Bright

×2Slope 1 x 2 2/3 wl Half-Curved TopAM03017ANMBrown, Golden

×1Slope 1 x 2 2/3 wl Half-Curved TopAM03017DHBrown

×1Slope 1 x 2 2/3 wl Half-Curved TopAM03017EWhite

×2Slope 45 2 x 2AM10273BMGGreen, Forest

×2Slope 45 2 x 2AM10273AENMagenta, Rich

×6Slope 45 2 x 2AM10273ANMBrown, Golden

×1Slope 45 2 x 2AM10273DHBrown

×4Plate 2 x 4AM09493BMGGreen, Forest

×8Plate 2 x 4AM09493AMCRed, Flame

×1Plate 2 x 4AM09493ANMBrown, Golden

×1Plate 2 x 4AM09493AVLGreen with Speckles, Granny Smith

×4Cone 1 x 1 with open topAM08412BOROrange, Bright

×2Slope brick 25 1 x 1 with open stud on slopeAM72001BMGGreen, Forest

×1Brick 2 x 2AM09023AVLGreen with Speckles, Granny Smith

×5Brick 2 x 2AM09023BMGGreen, Forest

×2Brick 2 x 2AM09023BTNSand, Dark

×1Brick 2 x 2AM09023ANMBrown, Golden

×1Brick 2 x 2AM09023AMCRed, Flame

×1Weapon, Firearm: pistol, revolver, .357 MagnumAM75484AENMagenta, Rich

×1Hinge plate 2 x 2 with 5 fingersAM09267AVLGreen with Speckles, Granny Smith

×2Slope brick 33 2 x 3AM04497AENMagenta, Rich

Instructions1 logged· 1 type

×1Instruction booklet for GRG42 Ultimate Story BuildersAD-GRG42-01

Packaging1 logged· 1 type

×1Original packaging for GRG42 Ultimate Story BuildersBOX-GRG42

Price history(last 6 months)

No completed sales in the last 6 months.