Abstract: A lockable safety device for use with a firearm. The device comprises a clamp or bracket that is engageable with a locking bar. When the clamp and locking bar are engaged with a firearm, access to, and use of, the firearm is restricted. The clamp can comprise a third arm projecting therefrom to prevent complete cycling of the firearm action.

Abstract: Disclosed is a lockable safety device for use with a firearm. The device comprises an elongated body with opposing large and small ends. The small end is inserted through the firearm receiver and secured external to the firearm receiver. The large end is sized to prevent movement through the firearm receiver. The small end is configured to accommodate a locking device. When the device is engaged with a firearm, access to, and use of, the firearm is restricted.

Abstract: Disclosed is a lockable safety device for use with a firearm. The device comprises a clamp or bracket that is engageable with a locking bar. When the clamp and locking bar are engaged with a firearm, access to, and use of, the firearm is restricted. The clamp can comprise a third arm projecting therefrom to prevent complete cycling of the firearm action.

Abstract: A lockable firearm safety comprising a cross bolt mechanism cooperating with rotatable combination dials. The cross bolt safety is axially displaceable between safe and fire positions. The firearm safety is mounted substantially within a recess defined in the firearm receiver or trigger guard. Each dial includes an internal raceway, an inner face and a connecting recess defined within one side. The cross bolt includes radially projecting shoulders. Each radially projecting shoulder cooperates with a respective inner face to generally prevent movement of the cross bolt from the safe position to the fire position. Each radially projecting shoulder cooperates with a respective connecting recess at a single rotational position of the combination dial to allow axial movement of the cross bolt from the safe position to the fire position. The cross bolt prevents discharge of the firearm in the safe position and allows discharge of the firearm in the fire position.

Abstract: A lockable firearm safety is incorporated into the bolt mechanism of a safety bolt to selectively block the forward motion of the hammer by either of two means: (a) preventing the trigger from moving rearward which movement would release the hammer permitting it to move forward and strike the firing pin; (b) by directly blocking the hammer from moving forward to strike the firing pin. When the safety bolt is placed in the safety position, the bolt may be locked in the safety position by means of a key. The firearm cannot be discharged until the safety bolt is unlocked and is moved to the fire position. The key is retained by the bolt unless the safety bolt is in the safety locked position.

Abstract: A lockable firearm safety is incorporated into the bolt mechanism of a safety bolt to selectively block the forward motion of the hammer by either of two means: (a) preventing the trigger from moving rearward which movement would release the hammer permitting it to move forward and strike the firing pin; (b) by directly blocking the hammer from moving forward to strike the firing pin. When the safety bolt is placed in the safety position, the bolt may be locked in the safety position by means of a key. The firearm cannot be discharged until the safety bolt is unlocked and is moved to the fire position.

Abstract: A muzzle loading firearm having a tubular receiver for retaining an axially movable hammer and a cocking handle assembly for moving the hammer to a cocked position. The hammer has a first body portion having a laterally extending slot and an engagement portion for receiving and engaging the sear. The cocking handle assembly is comprised of a cocking handle block disposed in the hammer slot and a cocking handle. A cocking handle return spring biases the cocking handle assembly towards a forward position. A hammer spring biases the hammer towards the percussion cap. The hammer is cocked by moving the cocking handle assembly to a rear position against the force of the cocking handle return spring. The rear surface of the cocking handle block engages the rear surface of the hammer slot, moving the hammer to the limit of rearward travel and allowing the sear to be received by the hammer engagement portion.

Abstract: An improved detonator assembly for a black powder firearm having a breech block, a receiver, and a nipple. The detonator assembly comprises a primer and a primer carrier. The primer carrier has an axial bore dimensioned to receive the primer at one end and slip over the firearm nipple at the opposite end. The primer carrier has a lip that abuts the breech block rear end. A tab laterally extends from the lip to provide a handle for installing and removing the assembly and a visual indication that the firearm is primed.

Abstract: An improved firearms barrel assembly having a cartridge chamber insert disposed in the butt end of a barrel and a pin for locking the insert in the barrel. The insert has a plurality of longitudinally extending grooves for equalizing pressure across a cartridge case. The multi-component construction of the assembly facilities production of the grooves.

Abstract: A firearm safety lock assembly for preventing the loading and accidental discharge of a firearm employs a cable which extends between a chamber insert and a muzzle cap. The cap and the insert are seatable against opposing ends of the firearm barrel. The cable is locked by an armature extension of a lock which has a catch for receiving a lug fixed to the cable. Lock assemblies for a wide variety of firearm makes and models may be assembled from a single kit.

Abstract: A two stage trigger assembly for a firearm employs a pivotally mounted searprop. The searprop is selectively pivotally coupled with the trigger. Upon actuation of the trigger, the searprop initially in a first stage remains fixed relative to the sear. In a second stage, the trigger catches the searprop to pivotally force the searprop to release from the sear to fire the firearm.

Abstract: A firearm safety for a firearm comprises a bracket mounted at the underside of the receiver. The bracket defines a pair of recesses for receiving detent shoulders of an operator arm. The bracket is spring-biased to permit the operator arm to be manually pivoted in snap-type fashion into one of the two recesses. The operator arm engages the trigger in one pivotal position to prevent actuation of the trigger.

Abstract: A buttplate is disclosed for a firearm buttstock of the type having a chamber therein for storing cartridges and the like. The buttplate has a plate member with an opening to permit access to the chamber and a channel in communication with the opening for receiving a removable cover member. The cover member is slidable in the channel over the opening to control access to the chamber and has means to maintain it in the channel across the opening.

Abstract: Action disabling device in a firearm having among its conventional components a spring-closed breech bolt, a tubular magazine, and a pivoted cartridge lifter. The disabling device is in the form of an operating arm pivoted with one end to a fixed part of the action so as to be swingable with its other end into active and inactive positions in which the same is in and out, respectively, of the closing path of the breech bolt, and is normally spring-urged into its inactive position, with this operating arm being, on overtravel of the lifter in lift direction for lack of a cartridge thereon, engaged and taken along by the lifter into its active position to stop the breech bolt on partial closure of the same. The operating arm is one of the arms of a double-arm lever the other arm of which projects to the outside of the receiver and is there accessible to an operator's finger for swinging the operating arm to its inactive position.

Abstract: Method of forming a cartridge chamber in the bore of a firearm barrel, which comprises driving into the bore of the barrel from the butt end thereof a mandrel of the surface configuration of the peripheral wall and mouth of the cartridge chamber, whereby the bore metal is squeezed into close form-fit with the mandrel, and then retracting the mandrel from the barrel bore.

Abstract: Semi-automatic reloading firearm is provided with a signal button which is normally urged into prominent projection from an aperture in the receiver to thereby foretell firing response of the firearm to the next pull on the trigger, and this signal button is operatively linked to the hammer of the firing mechanism so that on the firing stroke of this hammer the signal button is retracted into the aperture in the receiver to thereby foretell non-firing response of the firearm to the next trigger pull.

Abstract: To straighten firearm barrels with bores running out to muzzle ends, a barrel is bent at a transverse barrel plane at a distance of less than half the barrel length from the muzzle end to an extent and in a direction to bring the bore center axis at this barrel plane into line with a straight reference axis passing through the centers of the opposite bore ends.

Abstract: A safety marker is attachable to a trigger guard on a firearm in apparent interference with accustomed manipulation of the trigger, with the marker resembling a shield which presents an abnormal and startling sight on the firearm, and by its apparent interference with trigger manipulation has the effect of discouraging unauthorized handling of the firearm.

Abstract: An improved detonator assembly for a black powder firearm having a breech block, a receiver, and a nipple. The detonator assembly comprises a primer and a primer carrier. The primer carrier has an axial bore dimensioned to receive the primer at one end and slip over the firearm nipple at the opposite end. The primer carrier has a lip that abuts the breech block rear end. A tab laterally extends from the lip to provide a handle for installing and removing the assembly and a visual indication that the firearm is primed.