GunSpec

Firearms

Browse, search, compare, and retrieve detailed specifications for over 9,000+ firearms including variants.

Auth RequiredBuilder+

Walks the parent chain upward and the variant chain downward, returning ancestors (up to 20) and descendants (up to 50) around the given firearm.

GET/v1/firearms/{id}/family-tree

  • stringheaderrequired

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

  • stringrequired

    Firearm slug

    Accepts
    a lowercase slug: letters, digits and hyphens
    Example

  • FamilyTree

    The firearm plus its ancestor and descendant variants, walked recursively.

  • FamilyMember[]

    The parent chain, nearest first, up to 20 deep.

  • string

    URL-safe slug identifying the related firearm, e.g. type-58.

  • string

    Display name, as the maker writes it.

  • string | null

    Slug of the manufacturer that makes it. Resolve against /v1/manufacturers/{id}.

  • string | null

    Slug of the category it belongs to. Resolve against /v1/categories.

  • string | null

    The firearm this one is a variant of, or null when it is not a variant. Variant relationships are what firearm.variant.updated webhooks and /v1/firearms/{id}/variants follow.

  • string | null

    How this record differs from its parent: optics_ready, compact, threaded and so on. Null when the record has no parent.

  • integer | null

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

  • FirearmStatus | null

    Production status, one of in_production, discontinued, out_of_production, in_service, limited_production, prototype. Discontinued records are kept deliberately: a rifle built in 2004 wears parts nobody sells today.

  • string | null

    ISO 3166-1 alpha-2 code of where it was designed, e.g. AT.

  • string | null

    Line-art silhouette, or null where none has been drawn.

  • string

    When a field we serve last changed. Maintained by the database rather than by whatever wrote the row, so it moves for a corrected specification and does not move for a re-run of the importer.

  • string | null

    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.

  • FirearmRecord

    A firearm as stored: every specification column we serve, with no nested relations. FirearmDetail is this plus them, and /v1/firearms/{id}/family-tree returns this shape for current, since the walk reads the row and does not load the relations.

  • integer

    Integer flag, 1 when a 3D model is on file. Stored as the database holds it rather than as a boolean.

  • string | null

    Line-art silhouette, or null where none has been drawn.

  • string | null

    GLB model, or null where none is on file.

  • string | null

    The ammunition load ballistics figures are quoted against, where one is nominated.

  • number | null

    Muzzle velocity in metres per second exactly as the source stated it, kept beside our own figure so a reader can see what was quoted and what was derived.

  • number | null

    Muzzle energy in joules exactly as the source stated it.

  • number | null

    Effective range in metres exactly as the source stated it.

  • number | null

    Maximum range in metres exactly as the source stated it.

  • string | null

    Where the ballistics figures came from, named in prose.

  • string | null

    URL of the ballistics source, where it is a page rather than a book.

  • string

    URL-safe slug identifying the firearm, e.g. glock-17-gen5. Stable: it is what a mirror keys on.

  • string

    Display name, as the maker writes it.

  • FamilyMember[]

    Everything derived from it, breadth-first, up to 50 rows.

  • string

    URL-safe slug identifying the related firearm, e.g. type-58.

  • string

    Display name, as the maker writes it.

  • string | null

    Slug of the manufacturer that makes it. Resolve against /v1/manufacturers/{id}.

  • string | null

    Slug of the category it belongs to. Resolve against /v1/categories.

  • string | null

    The firearm this one is a variant of, or null when it is not a variant. Variant relationships are what firearm.variant.updated webhooks and /v1/firearms/{id}/variants follow.

  • string | null

    How this record differs from its parent: optics_ready, compact, threaded and so on. Null when the record has no parent.

  • integer | null

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

  • FirearmStatus | null

    Production status, one of in_production, discontinued, out_of_production, in_service, limited_production, prototype. Discontinued records are kept deliberately: a rifle built in 2004 wears parts nobody sells today.

  • string | null

    ISO 3166-1 alpha-2 code of where it was designed, e.g. AT.

  • string | null

    Line-art silhouette, or null where none has been drawn.

  • string

    When a field we serve last changed. Maintained by the database rather than by whatever wrote the row, so it moves for a corrected specification and does not move for a re-run of the importer.

  • string | null

    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.

  • 400VALIDATION_ERRORValidation error
  • 401UNAUTHORIZEDAPI key required
  • 403FORBIDDENValid key, not permitted
  • 404NOT_FOUNDResource not found
  • 429RATE_LIMITEDRate limit exceeded
  • 500INTERNAL_ERRORUnexpected server error

Requires Builder tier or higher.

Ancestors are returned root-first (oldest ancestor at index 0).

Descendants are returned in a flat array, depth-first.

Minimum tier
Builder+
Monthly quota
25,000/mo
Rate limit
60/min
Daily cap
2,000

Figures shown are for this endpoint's minimum tier. Higher tiers raise every limit.