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LEGO part 15303: Projectile, Spring Shooter Ammunition 8L Bar

Projectiles / Launchers12 colours255 sets

LEGO part LEGO part 15303: Projectile, Spring Shooter Ammunition 8L Bar

Specifications

Reference15303
CategoryProjectiles / Launchers
MaterialABS plastic
Colours12
Sets255
Listed pieces809
First appearance2014
Latest appearance2026
Element (Trans-Red)6287550 · 6054526
Most common colourTrans-Red
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 15303, Projectile, Spring Shooter Ammunition 8L Bar, belongs to the Projectiles / Launchers category. It exists in 12 colours and appears in 255 sets of our database, from 2014 to 2026, for a total of 809 listed pieces. Its most common colour is Trans-Red.

Number 15303 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in trans-red, it is 6287550.

Part 15303 through the years

The oldest set in our database that contains part 15303 is 75055 Imperial Star Destroyer, released in 2014 in the Star Wars theme. It is still in use: the most recent set featuring it, 75454 Imperial Remnant AT-AT with INT-4, dates from 2026.

Its peak year is 2017, with 35 sets containing it. The set with the most copies is 70839 The Rexcelsior!: 12 copies, against an average of 3.2 per set.

It is spread across several themes, led by Star Wars (53%), Ninjago (17%) and Super Heroes Marvel (6%). With 255 sets, it ranks no. 612 of 2,731 parts in our database and no. 3 of 27 in the Projectiles / Launchers category.

Sets containing part 15303, by period

PeriodSets
201429
201526
201635
201735
201820
201926
202014
202119
202213
20239
202411
202510
20268

Colours of part 15303

2 colours appear in only one set: bright light blue (70613 Garma Mecha Man) and trans-clear (21271 The Trial Chamber). 8 of its 12 colours are transparent.

Colour (element ID)SetsPiecesExample sets
Trans-Red6287550 · 6054526124373753017533675348
Trans-Bright Green6287551 · 606259954176753007534875315
Trans-Orange6296380 · 607263529102717737175671737
Trans-Dark Blue6296379 · 60658982778717557173875151
Trans-Neon Orange61249081132703157091670322
Trans-Light Blue6475097 · 6182245515604147518660499
Black6088489511705947059276047
Trans-Purple6491802 · 629638237717482115121264
Flat Silver6337367267529976181
Reddish Brown6276067 · 6250082257067821150
Bright Light Blue61980261270613
Trans-Clear65379361221271

Where to buy part 15303

Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.

Search part 15303 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 15303

Sets ranked by popularity that include at least one part 15303, in any colour.

Related parts

Often found with part 15303

Parts that share the most sets with part 15303, based on set inventories.

More parts in the Projectiles / Launchers category

All parts in the Projectiles / Launchers category

Frequently asked questions

How many LEGO sets include part 15303?

Part 15303 (Projectile, Spring Shooter Ammunition 8L Bar) appears in 255 sets listed on Setopedia, from 2014 to 2026, in any colour.

Which LEGO set contains the most copies of part 15303?

Set 70839 The Rexcelsior!, released in 2019, contains 12 copies, the highest count in our database. On average, a set containing part 15303 has 3.2.

Which colours does LEGO part 15303 come in?

12 colours are listed for part 15303. The most common is Trans-Red, found in 124 sets.

What is the rarest colour of part 15303?

According to our inventories, it is bright light blue, found in only 1 set (70613 Garma Mecha Man).

What is the element ID of part 15303 in trans-red?

In trans-red, part 15303 has element ID 6287550 or 6054526. Number 15303 is the mould number, the same for every colour.

Is LEGO part 15303 still used in recent sets?

Yes: it appears in sets released in 2026, such as 75454 Imperial Remnant AT-AT with INT-4.

Where can I buy LEGO part 15303 individually?

Single parts 15303 can be ordered on Pick a Brick (lego.com) in colours currently produced, or on BrickLink for older colours. The part is also included in the sets listed on this page.