초록 ▼

Devices and methods for altering a firearm to prevent firing of rounds of a first size while allowing the firing of rounds of a smaller, second size are provided. In one embodiment, a barrel safety device prevents a live round from fully chambering in a firearm, while allowing a blank to be chambere

Devices and methods for altering a firearm to prevent firing of rounds of a first size while allowing the firing of rounds of a smaller, second size are provided. In one embodiment, a barrel safety device prevents a live round from fully chambering in a firearm, while allowing a blank to be chambered and fired from the firearm. The barrel safety device includes a muzzle block, a rod, and a tip in one embodiment. The rod and the tip can be sized so as obstruct a portion of the barrel and/or the bullet chamber of the firearm, such that a round having a first length, such as a live round, contacts the tip of the barrel safety device and cannot be fully chambered. The rod and the tip can be sized so as to allow a cartridge having a second, smaller length, such as a blank cartridge, to be fully chambered without contacting the tip of the barrel safety device.

대표청구항 ▼

1. A device for converting a firearm capable of fully chambering a live round to a firearm only allowing a blank to be fully chambered, the blank having a length less than a length of the live round, the firearm including a muzzle, a barrel, and a bullet chamber, the device comprising: a rod sized a

1. A device for converting a firearm capable of fully chambering a live round to a firearm only allowing a blank to be fully chambered, the blank having a length less than a length of the live round, the firearm including a muzzle, a barrel, and a bullet chamber, the device comprising: a rod sized and shaped to occupy a central portion of the muzzle and a central portion of the barrel when the device is installed in the firearm;a tip disposed at a first end of the rod, the rod configured to position the tip within the barrel at a distance from the bullet chamber, the distance selected to allow a blank loaded into the firearm to fully chamber without contacting the tip, the distance further selected to place the tip in contact with a live round as the live round begins to be loaded into the bullet chamber, thereby preventing the live round from fully chambering;a muzzle block disposed at a second end of the rod and configured for attachment to the muzzle of the firearm, the muzzle block further configured to prevent a portion of exploding gasses emanating from a fired blank from escaping the barrel, the tip comprising a cone-shaped head and a plurality of vents configured to allow a portion of the exploding gases to travel unimpeded to the muzzle block. 2. The device of claim 1, wherein the tip comprises a channel configured to receive the first end of the rod. 3. The device of claim 1, wherein the muzzle block comprises a channel configured to receive the second end of the rod. 4. The device of claim 1, wherein the muzzle block comprises a channel configured to receive the muzzle of the firearm. 5. The device of claim 1, wherein the rod comprises a first receiver configured to engage the tip and a second receiver configured to engage the muzzle block. 6. The device of claim 5, wherein the first receiver and the second receiver comprise threads configured to engage with threads on the tip and the muzzle. 7. The device of claim 1, wherein the tip is integrally formed into the first end of the rod. 8. An apparatus for preventing a firearm from chambering a live round while allowing a blank to be fully chambered, the blank having a length less than a length of the live round, the firearm having a barrel, a muzzle, and a bullet chamber, the apparatus comprising: a rod securable to the muzzle and having a sufficient length to extend from the muzzle down the barrel and interfere with the loading of the live round so as to prevent the live round from being chambered in the bullet chamber, the rod comprising a tip, the tip comprising a cone-shaped head and a plurality of vents configured to allow a portion of exploding gases to travel unimpeded to the muzzle. 9. The apparatus of claim 8, wherein the rod is sized and shaped to occupy a central portion of the muzzle and a central portion of the barrel when the apparatus is installed in the firearm. 10. The apparatus of claim 8, wherein the rod is sized and shaped such that the tip is disposed within the bullet chamber when the apparatus is installed in the firearm. 11. The apparatus of claim 10, wherein the tip extends into only a portion of the bullet chamber when the apparatus is installed in the firearm. 12. The apparatus of claim 8, wherein the length of the live round is greater than a length of the bullet chamber, and wherein the tip does not extend into the bullet chamber when the apparatus is installed in the firearm. 13. The apparatus of claim 8, further comprising a muzzle block disposed at an end of the rod. 14. The apparatus of claim 13, wherein the muzzle block is sized and shaped to inhibit at least a portion of exploding gasses emanating from a fired blank from exiting the muzzle. 15. An apparatus for preventing a firearm from chambering a live round while allowing a blank to be fully chambered, the blank having a length less than a length of the live round, the firearm having a barrel portion, a muzzle portion, and a bullet chamber, the apparatus comprising: an elongated rod having a tip disposed on an end of the rod, the elongated rod being releasably securable to the muzzle portion and having a length so that the tip occupies only a portion of the bullet chamber when the rod is secured to the muzzle portion, the tip comprising a cone-shaped head and a plurality of vents configured to allow a portion of exploding gases to travel unimpeded to the muzzle portion. 16. The apparatus of claim 15, wherein the tip interferes with the live round so as to prevent the live round from being chambered in the bullet chamber when the apparatus is installed in the firearm. 17. The apparatus of claim 15, further comprising a muzzle block disposed at another end of the rod, the muzzle block being releasably securable to the muzzle portion. 18. The apparatus of claim 17, wherein the muzzle block is sized and shaped to inhibit at least a portion of exploding gasses emanating from a fired blank from exiting the muzzle portion.