Gunpla Option Parts
Sometimes you might want to add a little extra something to a Gundam that didn't come with the kit. That's where this wide selection of option parts comes into play! There are unpainted parts that give you a high degree of customization options, but there are also plenty of pre-colored sets that are ready to go right out of the box.
Top selling items of this category
Total 130 Items
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Coming in Apr 2026 Sale
Option Parts Set Gunpla 20 (Ride-On Set)Bandai has been slowly re-releasing every HGBC set as a "Gunpla Option Set" to keep... read more$24.95 -
Coming in Mar 2026 Sale
Option Parts Set Gunpla 19 (Fin Funnels)Well... this would have been kind of cool to have when the Entry Grade Nu... read more$20.95 -
Coming in Jan 2026
Option Parts Set Gunpla 18 (Build Booster Set)Usually these Gunpla option sets are 1-for-1 with their HGBC counterparts, but this one includes... read more -
Option Parts Set Gunpla 17 (Binder Gun)The 17th installment of the "Option Parts Set Series" is the "Binder Gun"! By using... read more -
Option Parts Set Gunpla 16 (Meteor Hopper)With Wing Fenice being unable to transform, it definitely needs a new stylish way to... read more -
Option Parts Set Gunpla 15 (Cavalier Aifrid)Wow, we kinda thought that the Gunpla Option Set line was going to be smaller... read more -
Option Parts Set Gunpla 14 (Gunbarrel Striker)This is the good stuff! We're glad the Gunpla Option Set line has graduated from... read more -
Option Parts Set Gunpla 07 (Powered Arms Powerder)Sometimes, the guns that come standard just aren't enough. If that's the case, you could... read more -
Option Parts Set Gunpla 08 (Ballden Arms)Remember the Build Custom line? We do too because we still have a lot of... read more -
Option Parts Set Gunpla 10 (Galaxy Booster)The backpack unit of the Build Strike Galaxy Cosmos is being sold separately, to no... read more -
Option Parts Set Gunpla 09 (Giant Gatling)A modular gatling gun to customize your Gunpla! Different gatling gun types can be made... read more -
Option Parts Set Gunpla 06 (Valuable Pod)A booster equipped with a wide range of weapons that can be combined with various... read more -
Option Parts Set Gunpla 05 (Universe Booster Plavsky Power Gate)The Star Build Strike Gundam's booster equipment is now available in an optional parts set... read more -
Option Parts Set Gunpla 13 (Gunpla Battle Arms Arms)The support mecha disassembles and becomes weapons! A set of a wide variety of joint... read more -
Option Parts Set Gunpla 12 (Large Railgun)The large railgun, long-range railgun, short barrel cannon, assault knife, and more used in "Mobile... read more -
Option Parts Set Gunpla 11 (Smoothbore Gun for Barbatos)The first add-on set for the HG IBO line features an intimidating array of weaponry!... read more -
Option Parts Set Gunpla 03 (Build Hands Edge)Okay so we're going to just toss HGBC in a bin and forget about it,... read more -
Option Parts Set Gunpla 04 (Build Hands Round)Okay so we're going to just toss HGBC in a bin and forget about it,... read more -
Option Parts Set Gunpla 02 (Launcher Striker & Sword Striker)The second set of Gunpla Option Parts is a double pack of the Launcher Striker... read more -
Option Parts Set Gunpla 01 (Aile Striker)Remember HGBC and HGBD:R and HG IBA and all that stuff? Good, now FORGET ABOUT... read more -
GUNPLA LED Unit (Blue) (Builders Parts)We at Gundam Planet will never lie to you. We have no idea what mobile... read more -
HGBC HWS & SV Custom Weapon SetIf you like the look of the 00 Sky Heavy Weapons, then you'll be glad... read more -
HGBC No-Name RifleIf you want to outfit your High Grades with a crazy cape/rifle similar to the... read more -
HGBC Build Hands Round (S, M, L)Here's another variation of the round build knuckles set, this time designed to match the... read more -
HGBC Build Hands Edge (S, M, L)We're sensing a little continuity break here: where did we go from Jigen Build Knuckles... read more -
HGBC Sky High WingsAlright everyone, don't think we don't see you out in the wild. We see all... read more -
HGBC Machine RiderWhat an interesting little thing! Rather than giving you a set vehicle shape like the... read more -
HGBC Binder GunThis HGBC Binder Gun set contains various parts that are similar in structure to the... read more -
HGBC Spinning BlasterFrom what we can tell, this set contains a functional rotation gimmick that allows the... read more -
HGBC Ptolemaios ArmsWe are just so, so confused. Maybe the show will clear up the reason this... read more -
HGBC Tilt Rotor PackCare package incoming! If you want to toughen up your Grimoire Red Beret even more,... read more -
HGBC Diver Ace UnitIt's the new Build Booster! Hold on though cause that's not REALLY the whole story;... read more -
HGBC Changeling RifleOkay so we've seen this as both the "Changeling Rifle" and the "Change Ring Rifle,"... read more -
HGBC Diver GearThe Build Divers version of the GP Base is here! This stand utilizes the new... read more -
HGBC Galaxy BoosterThe backpack unit of the Build Strike Galaxy Cosmos is being sold separately, to no... read more -
HGBC 24th Century WeaponsWhen we think of the 24th century, the first thing that comes to mind is... read more -
HGBC Ballistic WeaponsHey now, is this the inevitable point where HGBC sets become the new Builders Parts?... read more -
HGBC GM/GM WeaponsIf your Build Fighters kits, specifically those from GM's Counterattack, just don't come with enough... read more -
HGBC Ninpulse BeamsIf you want some effect parts designed to go with Ninpulse Gundam, we've got you... read more -
HG IBA MS Option Set 9The next option set is here! It comes with parts to make variants of the... read more -
HG IBA MS Option Set 8 & SAU Mobile WorkerThey're clearly not stopping with these option sets! This one appears to feature a prominent... read more -
HG IBA MS Option Set 7More option sets from Season 2 of IBO! This one contains a railgun, two short... read more -
HG IBA MS Option Set 6 & HD Mobile WorkerMore option sets from Season 2 of IBO! This one contains interchangeable head parts for... read more -
HG IBA MS Option Set 5 & Tekkadan Mobile WorkerHere's the first MS Option Set from Season 2 of Iron Blooded Orphans! It includes... read more -
HGBC Lightning Back Weapon System Mk-IIIWell we're 0-for-3 in guesses for Island Wars, so maybe we set our sights on... read more -
HGBC Northern PodWe're gonna give it to you straight: we still, even after watching Island Wars, don't... read more -
HGBC Gya Eastern WeaponsThe HGBC sets are BACK! This set features two beam guns for the ZZII (or... read more -
HGBC Jigen Build Knuckles MaruThe more square variant of the build knuckles has been around for a while, so... read more -
HG IBA MS Option Set 4 & Union Mobile WorkerHere's the fourth IBA custom parts set, featuring a large sword for the Graze and... read more -
GUNPLA LED Unit (Yellow) (Builders Parts)Most mobile suits use red or green LED units, but the classic RX-78 design needs... read more -
HG IBA MS Option Set 3 & Gjallarhorn Mobile WorkerThe third Iron Blooded Orphans custom set includes extra weapons for your Gundam Gusion as... read more -
Builders Parts HD-38 1/144 MS Hand 02 Dark Gray (Zeon)Finally, the perfect builders parts for modelers looking for more dynamic and expressive hand options... read more -
HG IBA MS Option Set 2 & CGS Mobile Worker (Space)The second Iron Blooded Orphans custom part set is here, and this time it features... read more -
HG IBA MS Option Set 1 & CGS Mobile WorkerThe first add-on set for the HG IBO line features an intimidating array of weaponry!... read more -
Builders Parts HD-37 1/144 MS Hand 01 Dark Gray (EFSF)Finally, the perfect builders parts for modelers looking for more dynamic and expressive hand options... read more -
HGBC Jigen Build Knuckles KakuThe expressive martial arts designs of the Build Fighters Try hands are some of their... read more -
HGBC Giant GatlingA modular gatling gun to customize your Gunpla! Different gatling gun types can be made... read more -
Builders Parts System Weapon 010It's a weapon set for your Seed kits! This system weapon release features a Strike... read more -
Builders Parts System Weapon 009This system weapon set includes bazookas that fit perfectly with your Origin suits! It includes... read more -
Builders Parts HD-35 MS Vernier 03VERNIERS VERNIERS VERNIERS! You want Verniers?? BANDAI WILL GIVE YOU VERNIERS! We've got big ones,... read more -
Builders Parts HD-36 MS Sword 01Bringing a knife to a gunfight isn't a sign of stupidity, it's a sign that... read more -
HGBC Ballden Arm ArmsThis build custom parts set comes with various joints and arms so you can fit... read more -
HGBC Portent FlyerEvery Build Fighters suit needs a support unit, so why should Gundam Portent be any... read more -
HGBC Lightning Back Weapon System Mk-IIThis new backpack features design styling reminiscent of the GP01fb and can combine with the... read more -
HGBC Kurenai Weapon (Red Weapon)You know what your Gunpla collection needs more of? Swords, rocket launchers, Gatling guns, and... read more -
HGBC Mock Army SetHere's a custom weapon set that can be used with both 1/144 and 1/100 models!... read more -
HGBC Mega Ride LauncherIf you need a bike for your Gunpla but also need guns, and you don't... read more -
Builders Parts HD-33 MS Armor 01Gundams having all the armor got you down? Is it discouraging when you can empty... read more -
Builders Parts HD-34 MS Marine 01Are you piloting a Zaku and all your friends are in those newfangled amphibious suits?... read more -
HGBC Ez-ArmsWhat Build Fighters release is complete without a matching set of Build Custom parts? Certainly... read more -
HGBC Lightning Back Weapon SystemIf you need a transformable backpack and your kit just doesn't have enough of those,... read more -
HGBC Powered Arms PowerederSometimes, the guns that come standard just aren't enough. If that's the case, you could... read more -
Builders Parts HD-32 MS Funnel 01Not every Newtype can afford one of those fancy suits that feature funnels standard, and... read more -
Builders Parts HD-31 MS Ground 01The perfect detail-up set for amphibious suits, this builders part release comes with two hover... read more -
HGBC Valuable PodYet another uncreative name aside, this kit is actually a good value! Rather than release... read more -
Builders Parts System Weapon 008This System Weapon release is an awesome combination of retro and modern! Featuring both the... read more -
Builders Parts System Weapon 007This is it everyone. If we had to look back and pick the one singular... read more -
Builders Parts HD-30 MS Launcher 01This is the builders parts set for all those of you who have ever thought,... read more -
Builders Parts HD-29 MS Cannon 01If you always feel like your Gundam needs more explosives, look no further! This Builders... read more -
HGBC Skull WeaponSometimes your Gundams just aren't intimidating enough, but this set is out to change that!... read more -
HGBC Dark Matter BoosterHere's the very fiendish-looking booster for the Exia Dark Matter! Reminiscent of the creepy Legilis... read more -
HGBC Gunpla Battle ArmsThis Gunpla Battle arms will provide a plethora of options for how to pose your... read more -
Builders Parts HD-28 MS Wing 01The official conversion parts being made precisely for refining your Gunpla. This non-scale wing is... read more -
Builders Parts HD-27 MS Vernier 02The official conversion parts being made precisely for refining your Gunpla. The second vernier set... read more -
HGBC Matsuri Weapon SetHere are some great attachment weapons to complement your musha-style Gundam HG kits! They suit... read more -
HGBC Universe Booster Plavsky Power GateHere's the build booster that makes the Star Build Strike so powerful! Featuring effect parts... read more -
HGBC Hyper Gunpla Battle WeaponsWe've never seen Gundam weapons that look so dangerous, featuring such parental favorites as giant... read more -
HGBC K9 Dog PackIt's about time a Gundam got a four-legged companion; this one packs much more of... read more -
HGBC Amazing Weapon BinderPart of what makes the new Kampfer Amazing just that is its expansive arsenal of... read more -
Builders Parts HD-21 MS Emblem Relief 01If you're looking to add an extra layer of definition to your model kits, this... read more -
HGBC Build Booster Mk-IIAs a continuation of the trend started with the original Build Booster, this will be... read more -
HGBC GP BaseIf only this base worked like it did in the show!! Unfortunately it doesn't, but... read more -
HGBC Meteor HopperWith Wing Fenice being unable to transform, it definitely needs a new stylish way to... read more -
Builders Parts System Weapon 006Sometimes the weapons that come with your Zeon HG kits just don't cut it. Well... read more -
HGBC Amazing BoosterHere's the support unit used by Yuuki in the Zaku Amazing's first battle against the... read more -
HGBC Build BoosterA flying robot found in both GBF and real life! It transforms, allowing it to... read more -
Builders Parts HD-25 1/144 MS Spike 02The official conversion parts being made precisely for refining your Gunpla. This set features new... read more -
Builders Parts HD-26 1/144 MS Pipe 01Builders Parts HD are the official parts to add a new level of detail to... read more -
Builders Parts HD-20 MS Radome 01The official conversion parts being made precisely for refining your Gunpla. These radomes would go... read more -
Builders Parts HD-19 MS Panel 01The official conversion parts being made precisely for refining your Gunpla. These panel parts are... read more
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