Spanish/English Firearms Dictionary
Spanish Term English Translation
Acción dobleDouble action
Acción simpleSingle action
AceiteOil
AceroSteel
Aguja percutoraFiring pin
AleacionAlloy
AlzaRear sight
AmetralladoraMachinegun
AnimaRifled section of barrel
AntimonioAntimony
ArandelaWasher
ArcabuzArquebus
Arma CortaHandgun
Arma de fuegoGun/firearm
Armazón, Armadura(Pistol) frame
AsideroGrip (on slide for pulling it back)
AtacadorRam rod
AvancargaMuzzleloading
BalaBullet
BaquetaCleaning rod
BarrileteRevolver cylinder
Basculamiento (del canon)Downward tipping (of rear end of barrel)
BateriaArtillery Battery (4 guns)
BìpodeBipod
BielaTrigger transfer bar, drawbar, connecting rod
Boca de fuegoMuzzle
Bocacha apagallamasFlash hider
BotadorEjector
BronceBronze
CachaGrip panel
CerrojoSlide, bolt
ChavetaCotter pin, or spring-loaded retainer pin
CierreLocking action, closure (locking of barrel to slide)
CulataStock
Cajón de los MecanismosReceiver, action
CalibrarSize (verb)(e.g. lead bullet)
CantoneraButt plate
CañónBarrel / Artillery Piece
Capsularifle/pistol primer
CarabinaCarbine
Cargador de petacaBox magazine
Cargador de reservaSpare magazine
CargadorMagazine
CarrilleraCheeckpiece
CartuchoCartridge, round, shot
CasquilloCartridge casing
CedroCedar
CeraBee's wax
Cera PerdidaCasting, lost wax process
Cierre, CerrojoBolt
Cinta de CargaMachinegun ammo belt
ClavijaPin
Cola de milanoDovetail
Correa portafusilSling
CorrederaSlide (pistol)
CromadoChrome plating (noun)
Cromado duroHard chrome plating (noun)
Cromado negroBlack chrome plating (noun)
CuadrilladoChechering (noun)
CuadrillarCheckering (verb)
CuerpoCartridge case body
Culata sintèticaSynthetic stock
CuloteCartridge case head
DesmontarDisassemble (verb)
Dióptero / DioptraAperture sight
Disparador, GatilloTrigger
EjePin, axis
EmpavonadoBlue steel (verb)
EncasquilladoFailure to eject/extract
Energía Energy
EscobillonBore brush
EscopetaShotgun
EscotaduraCut-away
EspoleadoCheckered
EstampadoStamped (noun)(like a receiver)
EstamparStamp (verb)(like a receiver)
EstaņoTin
ExtractorExtractor
Eyector, ExpulsorEjector
FiabilidadReliability
FiadorSear
FogonazoMuzzle flash
FosfatadoPhosphate type finish
FundidoCast (e.g. iron)
Fusil de asaltoAssault rifle
FusilRifle (military)
GolleteCartridge case neck
Goma antideslizanteNon-slip rubber
GrafitoGraphite
GrasaGrease
Guardamanoshandguard
GuardamonteTrigger guard
Guión / la MiraFront sight
HayaBirch
HerramientaHand tool, general
HierroIron
ImpactoImpact
Indicador del cartuchoLoaded Chamber Indicator
InterrumptorInterrupter
LatonBrass
LinotipoLinotype alloy
LubrificanteLubricant
Macizo de correderaMassive rear part of slide
Macizo de maniobra de canonMassive lower rear appendage of the barrel
Madera / Madera de...Wood
MartilloHammer
MatrizMold, female
MetralletaSubmachine gun
Mira, laSight, for aiming
MecanismoAction
MoldeMold, male
MoldeadoMolded
MontarAssemble (verb)
MosquetónShort rifle
MuelleSpring
MuescaNotch
MuniciónAmmunition
NacarMother of Pearl
NiqueladoNickel Plating (noun)
NogalWalnut
PalancaLever
ParafinaParafin
PasadorDrift pin
PasivadoElectroplating (noun)
PavonadoBlued steel
Peine (Peine de Carga)Stripper clip
Percusion AnularRimfire
Percusion CentralCenterfire
PercutorHammer (firearm)
Perrillo OcultoHammerless action
Perro or PerrilloHammer, curved external
PestanaFlange
PestilloLatch, catch
PistolaPistol
PistoletePistol grip
PistónShotgun primer
PlateadoSilver Plating (noun)
PlomoLead
PrecisiónAccuracy, precision
PrenzaPress
ProyectilProjectile
Punto de ImpactoImpact point
Punto de miraFront sight
PunzonPunch (tool)
RayadoRifling
RebufoMuzzle blast
RecalibrarResize (verb)(e.g. cartridge case)
RecámaraChamber
RecargaReloading
ReculadaRecoil
ReelevaciónMuzzle flip
RetrocesoRecoil
RevólverRevolver
Rifle de CerrojoBolt action rifle
Rifle de PalancaLever-action rifle
Rifle ExpressDouble rifle
Rifle SemiautomáticoSemiautomatic rifle
SeguroSafety
Seguro de aletaRotating Safety Lever
SubfusilSubmachinegun
TaponSpring Cap
TamborCylinder (revolver)
Tetón de cierreBolt lug
TirarShoot (verb)
TiradorShooter (a person)
TiroShoot (noun)
TornilloScrew
TrabucoBlunderbus
TurquesaBullet mold, antique
UñaExtractor hook
UtilHand tool, special
VainaCartridge case
Vastago de percutorHammer rod
Velocidad inicialMuzzle velocity
Visor (óptico)Telescope
Visor de punto rojoRed-dot sight
English Term Spanish Translation
Accuracy, precisionPrecisión
ActionMecanismo
AlloyAleacion
AmmunitionMunición
AntimonyAntimonio
Aperture sightDióptero/Dioptra
ArquebusArcabuz
Artillery Battery (4 guns)Bateria
Artillery PieceCañón
Assault rifleFusil de asalto
Assemble (verb)Montar
BarrelCañón
Bee's waxCera
BipodBìpode
BirchHaya
Blue steel (verb)Empavonado
Blued steelPavonado
BlunderbusTrabuco
BoltCierre, Cerrojo
Bolt action rifleRifle de Cerrojo
Bolt lugTetón de cierre
Bore brushEscobillon
Box magazineCargador de petaca
BulletBala, Proyectil
Bullet mold, antiqueTurquesa
Butt plateCantonera
BrassLaton
BronzeBronce
CarbineCarabina
Cartridge caseVaina, Casquillo
Cartridge case bodyCuerpo
Cartridge case headCulote
Cartridge case neckGollete
Cartridge, round, shotCartucho
Cast (e.g. iron)Fundido
Casting, lost wax processCera Perdida
CedarCedro
CenterfirePercusion Central
ChamberRecámara
CheckeredEspoleado
Chechering (noun)Cuadrillado
Checkering (verb)Cuadrillar
CheeckpieceCarrillera
Chrome plating (noun)Cromado
Chrome plating, black (noun)Cromado negro
Chrome plating, hard (noun)Cromado duro
Cleaning rodBaqueta
Cotter pinChaveta
Cut-awayEscotadura
Cylinder (revolver)Tambor, Barrilete
Disassemble (verb)Desmontar
Double actionAcción doble
Double rifleRifle Express
DovetailCola de milano
Drift pinPasador
EjectorEyector, Expulsor, Botador
Electroplating (noun)Pasivado
EnergyEnergía 
ExtractorExtractor
Extractor hookUña
Failure to extract/ejectEncasquillado
Firing pinAguja percutora, percutor
FlangePestana
Flash hiderBocacha apagallamas
Front sightGuión / la Mira, Punto de mira
GreaseGrasa
GraphiteGrafito
Grip (on slide for pulling it back)Asidero
Grip panelCacha
Gun/firearmArma de fuego
Hand tool, generalHerramienta
HammerMartillo, percutor
Hammer, curved externalPerro or Perrillo
Hammerless actionPerrillo Oculto
HandguardGuardamanos
HandgunArma Corta
IronHierro
ImpactImpacto
Impact pointPunto de Impacto
Latch, catchPestillo
LeadPlomo
LeverPalanca
Lever-action rifleRifle de Palanca
Linotype alloyLinotipo
LubricantLubrificante
MachinegunAmetralladora
Machinegun ammo beltCinta de Carga
MagazineCargador
Mold, femaleMatriz
Mold, maleMolde
MoldedMoldeado
Mother of PearlNacar
MuzzleBoca de fuego
Muzzle blastRebufo
Muzzle flashFogonazo
Muzzle flipReelevación
Muzzle velocityVelocidad inicial
MuzzleloadingAvancarga
Nickel Plating (noun)Niquelado
Non-slip rubberGoma antideslizante
NotchMuesca
OilAceite
ParafinParafina
Phosphate type finishFosfatado
PinEje, clavija
PistolPistola
Pistol frameArmazón, Armadura
Pistol gripPistolete
PressPrenza
Primer, rifle/pistolCapsula
Primer, shotgunPistón
ProjectileProyectil
Punch (tool)Punzon
Ram RodAtacador
Rear sightAlza
Receiver, actionCajón de los Mecanismos
RecoilRetroceso
Recoil spring capTapon
Red-dot sightVisor de punto rojo
ReliabilityFiabilidad
ReloadingRecarga
Resize (verb)(e.g. cartridge case)Recalibrar
RevolverRevólver
Rifle (military)Fusil
RiflingRayado
Rifled section of barrelAnima
RimfirePercusion Anular
SafetySeguro
ScrewTornillo
SearFiador
Semiautomatic rifleRifle Semiautomático
Shoot (noun)Tiro
Shoot (verb)Tirar
Shooter (a person)Tirador
Short rifleMosquetón
ShotgunEscopeta
Silver Plating (noun)Plateado
Single actionAcción simple
Size (verb)(e.g. lead bullet)Calibrar
SleeveManguito
Slide (pistol)Corredera, Cerrojo
Slide-stopRetenida
SlingCorrea portafusil
Spare magazineCargador de reserva
SpringMeulle
Stamp (verb)(like a receiver)Estampar
Stamped (noun)(like a receiver)Estampado
SteelAcero
StockCulata
Stripper clipPeine (Peine de Carga)
SubmachinegunSubfusil / Metralleta
Synthetic stockCulata sintètica
TelescopeVisor (óptico)
TinEstaņo
TriggerDisparador, Gatillo
Trigger guardGuardamonte
Hand tool, specialUtil
WalnutNogal
WasherArandela
WoodMadera / Madera de...
My thanks to Rafael Contreras and Stephen Ladd for his help on this page.

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