Compatibility

Your API key. Authorization: Bearer <key> is accepted in its place.

Attachment slug

Accepts

a lowercase slug: letters, digits and hyphens

Example

magpul-zhukov-s-stock

The response payload

URL-safe slug identifying the part, e.g. magpul-zhukov-s-stock.

Display name, as the maker writes it.

What kind of part it is: stock, optic, muzzle, magazine, grip.

Who makes it.

The maker's own SKU, where they publish one.

Weight in grams.

Length in millimetres.

Magazines only

Suppressors and muzzle devices

The mount position this part occupies, or null when it takes none.

True when the part ships on the firearm from the factory. A factory part carries no statMods or specDeltas, because the firearm's own figures already include it.

The firearm this is the factory part for, when isFactoryPart is true.

Editorial adjustments to the game statistics once fitted, keyed by stat. Same status as game_* on a firearm: not measured.

Specification changes once fitted, keyed by field: a folding stock changes the folded length, for example.

Absolute URL of the manufacturer product photo on the assets CDN, ready to render. Null when no photo has been sourced yet.

Production status of an attachment. limited corresponds to a firearm's limited_production.

How completely the record is specified and how well it is sourced, 0 to 1. A record-level completeness and provenance measure, not a per-field probability of correctness. Use it to rank and triage; use sources to verify an individual number.

When a field we serve last changed.

Opaque fingerprint of this record. It changes when and only when a field we serve changes, so a client holding the same value already has the record and need not fetch it. Equality is the only supported operation: do not parse it, and do not assume how it is computed. Null means the record has not been written since versioning began, not that it is unchanged.

Prose summary of the record, where one has been written.

Category-specific facts

JSON array of the pages the figures were taken from, as a string.

Page the asset or document was taken from.

Where a record's figures came from and how far they have been checked, in one place. sources are the pages consulted; check a specific figure against those. sourceKinds says what each page is and bestSourceKind the strongest of them, on the hierarchy SourceKind defines: a maker or standards-body page is evidence for a figure, a retailer or forum page is evidence the item exists. dataConfidence is the 0 to 1 score set from what was actually sourced and never raised by hand. verifiedAt and verifiedFields say when a source was last read against the record and which fields it stated; null means the row is still seed knowledge. updatedAt and version are the same cache signals the record carries at the top level.

The pages consulted when the record was compiled, as an array. Check a specific figure against these rather than against dataConfidence.

What each cited page is, in sources order, on the SourceKind hierarchy. A host not in the source map is other, never guessed.

The strongest kind among the citations, or null when nothing is cited. manufacturer or standards_body means a figure can be checked against an authority; retailer or community alone means the record is still supported by copies of copies.

The 0 to 1 score set from what was actually sourced, never raised by hand. See the confidence bands in the docs.

When a source was last read against this record. Null means the row is still seed knowledge.

Which fields the source stated, as an array. Everything else on a verified row is still unverified. Null where no source has been read.

Cartridges only: the page the drawing figures were taken from. Null on every other kind of record.

When a served column last changed; the same value the record carries at the top level.

The record's content version, equal to the top-level version; equal versions mean equal data.

Year it entered production or service. Null where the date is disputed or unknown.

Requirement groups. One standard from each group must be present on the firearm. Empty means universal fit.

Standards this adds to the firearm once fitted, resolved to { id, name, kind }.

Kind-prefixed standard id.

Display name, as the maker writes it.

What sort of interface it is.

What this part is rated for, where being rated matters, meaning suppressors and magazines. The caliber, bore and minimum-barrel gate is checked against these and is never bridged or inferred.

Slug of the cartridge. Resolve against /v1/calibers/{id}.

Display name of the cartridge.

Shortest barrel in millimetres this part is rated for in that cartridge. Null where the maker states none.

Whether the maker rates it for automatic fire in that cartridge.

Free-text notes that do not belong in a specific field.

Number of firearms with a curated override for this attachment

When the record was first added, YYYY-MM-DD HH:MM:SS in UTC.