Abstract: The invention provides a method and composition for reducing the level of stress in fish. The method involves applying an effective amount of a stress-relieving additive, such as an herbal extract, plant extract, root extract, or the like, to a solution for containing fish. Valerian root extract, chamomile flower extract, and mixtures of these can be used. An aqueous conditioner composition containing a stress-relieving additive is formulated for use with fish.

Abstract: A combined tactical breaching device and flash suppressor comprising a cylindrical body portion having a longitudinal central smoothbore, the body portion being threaded at one end thereof for threadedly engaging the muzzle of a firearm barrel, a pair of longitudinally extending diametrically opposed furcations formed in the other end of the body portion by a pair of diametrically opposed slots formed in the body portion and extending from the other end toward the first end, the slots being of a length and width such that when the other end is placed against a target and in contact therewith, frangible ammunition may be discharged through said device for breaching the target; also disclosed is a method for breeching a barrier such as a door, dead bolt locks and 1/4 inch steel plate, where applicable.

Abstract: An improved flash suppressor for attachment to the muzzle end of the barrel of a firearm comprising a generally cylindrical body member having a first portion adapted to receive a projectile from the barrel and a second portion adapted to receive a projectile from the first portion, the first portion having a longitudinal smoothbore passage therethrough through which a projectile discharged from the barrel passes, the second portion having a longitudinal passage with an inside diameter significantly greater than the inside diameter of the first portion passage, a smooth tapered transition wall connecting the longitudinal passages of the first and second portions, a pair of diametrically opposed longitudinal vent slots in the second portion and extending from the distal end of the second portion toward the first portion whereby the second portion comprises a pair of furcations, and at least one radially directed vent opening formed in each of the furcations.

Abstract: A debris shield/flash reducer for use in conjunction with attachments mounted on the muzzle end of a firearm barrel comprising a body member having a partial cylindrical configuration, a length adapted to extend along the attachments and a radius slightly greater than the radius of the attachment; a radially inwardly directed flange integrally formed with the body member at each end thereof for positioning the debris shield on the attachment, and attachment encircling means secured to the body member for securing the debris shield on the attachment.

Abstract: A gun barrel having a rifled-bore section at the breech end thereof and a smooth-bore section at the muzzle end thereof, the sections having a gas tight connection therebetween, the rifled-bore section comprising a first generally tubular body having a longitudinal bore and at least one spiral groove formed in the wall of the bore to a depth of a predetermined dimension, the rifled-bore section having a length corresponding substantially to the peak pressure point for the gun barrel, the smooth-bore section comprising a second generally tubular body having a longitudinal bore coaxial with the longitudinal bore of the rifled-bore section, and the longitudinal bore of the smooth-bore section having a diameter greater than the diameter of the bore of the rifled-bore section and less than the diameter of the spiral rifling groove.

Abstract: A flash suppressor for use on a rifled barrel of a firearm comprising a generally tubular body member having a first portion adapted to receive a projectile from the barrel and a second portion adapted to receive a projectile from the first portion, the first portion having a longitudinal smoothbore passage therethrough, through which a projectile discharged from the barrel passes, the barrel and the first and second portions being coaxial, and the smoothbore passage having a diameter less than the diameter of a circle passing through the bottom of the rifling grooves in the barrel, the second portion having an inside diameter significantly greater than the diameter of the smoothbore passage, and a plurality of radially directed vent openings formed in the second portion of the body member.

Abstract: The present invention is a further improvement on Marshall et al. U.S. Pat. No. 3,525,172. Herein it is proposed to construct the gun barrel of two sections which are threaded together. The rifled bore of the barrel is terminated at a predetermined point and the smooth bored muzzle portion is threaded into the rifled portion at the juncture point of peak pressure between the two barrel portions. The threaded areas on each of the gun barrel sections are interrupted in a manner that facilitates quick longitudinal assembly and a rotation of the barrels by 90.degree. locks the barrels together.

Abstract: A versatile recoil protector for protecting a persons shoulder during shooting of a gun. The protector is made of a main body portion which fits over the shoulder and is held in place by suitable strap means. An arm protector is secured to the main body portion in the vicinity of the shoulder thereby providing double protection at the shoulder. The protector is made of any light weight, plyable and comfortable material to which a suitable shock absorption material has been secured. A shock absorption material may be natural or synthetic rubberized material or any other suitable material.

Abstract: An accuracy control harness for use with handguns is proposed in which a wide strap arranged to extend across the back of a wearer terminates beneath each of the arms of the wearer. Another strap of greater length is slidably secured to the back strap with one end of this latter strap being adjustably secured to one end thereof in front of the user. The longer strap also includes a terminal portion having a handgun receiving loop.

Abstract: A barrel extension for a weapon having a barrel internally threaded at its forward end together with various associated devices including a hand grip and a wrench which includes a tubular member having a smooth bore and an externally threaded end portion threadedly engageable with the threaded forward end portion of the weapon barrel with the barrel extension bore aligned with the barrel bore and including a hollow nightstick having an interior forming a storage cavity for the barrel extension, the nightstick having an internally threaded open end portion for threaded engagement with a threaded portion on a closure member to close the storage cavity in order to transport the barrel extension in a concealed manner.

Abstract: A barrel extension for a weapon having a barrel internally threaded at its forward end together with various associated devices including a hand grip and a wrench which includes a tubular member having a smooth bore and an externally threaded end portion threadedly engageable with the threaded forward end portion of the weapon barrel with the barrel extension bore aligned with the barrel bore and including a hollow nightstick having an interior forming a storage cavity for the barrel extension, the nightstick having an internally threaded open end portion for threaded engagement with a threaded portion on a closure member to close the storage cavity in order to transport the barrel extension in a concealed manner.