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An anti-pinch bolt is provided for use with a paintball marker having an automatic reloading mechanism comprising an instrument connected to the bolt by a pin for moving the bolt between a loading and a loaded position. The bolt comprises a tubular bolt body having a front end, a rear end and a slot

An anti-pinch bolt is provided for use with a paintball marker having an automatic reloading mechanism comprising an instrument connected to the bolt by a pin for moving the bolt between a loading and a loaded position. The bolt comprises a tubular bolt body having a front end, a rear end and a slot for receiving the pin. A spring is provided for maintaining, in use, the pin in a first position in the slot, the spring allowing movement of the pin toward a second position in the slot when the bolt is obstructed by the presence of a paintball.

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The invention claimed is: 1. An anti-chop bolt for a paintball marker having an automatic reloading mechanism comprising an instrument connected to the bolt by a pin for moving the bolt between a loading and a loaded position, the bolt comprising; a tubular bolt body having a front end, a rear end

The invention claimed is: 1. An anti-chop bolt for a paintball marker having an automatic reloading mechanism comprising an instrument connected to the bolt by a pin for moving the bolt between a loading and a loaded position, the bolt comprising; a tubular bolt body having a front end, a rear end and a slot for receiving the pin; a pinhold in the tubular bolt body for engaging the pin; and biasing means for maintaining the pinhold in a first position relative to the slot, the biasing means allowing movement of the pinhold toward a second position in the slot when the bolt is obstructed by the presence of a paintball. 2. An a anti-chop bolt as claimed in claim 1 wherein the tubular bolt body comprises a hollow core extending from the rear end thereof axially into the tubular body, a pair of slots in communication with the hollow core, and a plug member for closing off the hollow core at the rear end thereof. 3. An anti-chop bolt as claimed in claim 2 wherein the biasing means comprises a spring located within the hollow core. 4. An anti-chop bolt as claimed in claim 3 further comprising a pinhold for receiving the pin, the pinhold being urged by the spring toward the first position. 5. An anti-chop bolt as claimed in claim 4 further comprising a connector located between the spring and the pin hold to facilitate alignment and operation thereof. 6. An anti-chop bolt as claimed in claim 4 wherein the pinhold comprises a cylindrical member having an aperture therein for receiving the pin, the aperture in use being aligned with the slot on the tubular bolt body. 7. An anti-chop bolt as claimed in claim 5 wherein the pinhold comprises a cylindrical member having an aperture therein for receiving the pin, the aperture in use being aligned with the slot on the tubular bolt body, and a hollow portion for receiving at least a part of the connector. 8. An anti-chop bolt as claimed in claim 5 wherein the connector comprises a circular central portion, a first lateral cylindrical portion at least a part of which engages with the pin hold, and a second lateral cylindrical portion which is received within the spring. 9. An h anti-chop bolt as claimed in claim 3 wherein the spring is selected so as to have a biasing force to equalize the pressure of the forward motion of the bolt. 10. An anti-chop bolt as claimed in claim 3 wherein the spring is selected so that it will allow movement of the pin within the slot when the force required to rupture a paint ball is greater than the force of the spring. 11. An anti-chop bolt as claimed in claim 1 having a face at the front end, a passage extending from the front end rearwardly into the tubular bolt body, and a plurality of air inlet apertures about the circumference of the bolt body whereby air under pressure is forced through the holes, into the passage, and out through the front face of the tubular body. 12. An anti-chop bolt comprising: a tubular bolt body having a front end, a rear end and a slot for receiving a pin; and biasing means associated with a pinhold member in the tubular bolt body for maintaining, in use, the pin in a first position in the slot, the biasing means allowing movement of the pin towards a second position in the slot so that, in use, an obstruction to movement of the bolt allows the pin to move between the first and second positions without movement of the bolt. 13. An anti-chop bolt as claimed in claim 12 wherein the tubular bolt body comprises a hollow core extending from the rear end thereof axially into the tubular body, a pair of slots in communication with the hollow core, and a plug member for closing off the hollow core at the rear end thereof. 14. An anti-chop bolt as claimed in claim 13 wherein the biasing means comprises a spring located within the hollow core. 15. An anti-chop bolt as claimed in claim 14 further comprising a pinhold for receiving the pin, the pinhold being urged by the spring toward the first position. 16. An anti-chop bolt as claimed in claim 15 further comprising a connector located between the spring and the pin hold to facilitate alignment and operation thereof. 17. An anti-chop bolt as claimed in claim 16 wherein the pinhold comprises a cylindrical member having an aperture therein for receiving the pin, the aperture in use being aligned with the slot on the tubular bolt body. 18. An anti-chop bolt as claimed in claim 17 wherein the pinhold comprises a cylindrical member having an aperture therein for receiving the pin, the aperture in use being aligned with the slot on the tubular bolt body, and a hollow portion for receiving at least a part of the connector. 19. An anti-chop bolt as claimed in claim 17 wherein the connector comprises a circular central portion, a first lateral cylindrical portion at least a part of which engages with the pinhold, and a second lateral cylindrical portion which is received within the spring. 20. An anti-chop bolt as claimed in claim 13 wherein the spring is selected so that it will allow movement of the pin within the slot when the force required to rupture a paint ball is greater than the force of the spring. 21. An paintball marker having an anti-chop bolt, the paintball marker having an automatic reloading mechanism comprising an instrument connected to the bolt by a pin for moving the bolt between a loading and a loaded position, the bolt comprising: a tubular bolt body having a front end, a rear end and a slot for receiving the pin; and biasing means for maintaining, in use, the pin in a first position in the slot, the biasing means allowing movement of the pin toward a second position in the slot when the bolt is obstructed by the presence of a paintball. 22. An anti-chop bolt for use with a paintball marker having an automatic reloading mechanism comprising an instrument connected to the bolt by a pin for moving the bolt between a loading and a loaded position, the bolt comprising: a tubular bolt body having a front end, a rear end and a slot for receiving the pin; and biasing means for maintaining, in use, the pin in a first position in the slot, the biasing means allowing movement of the pin toward a second position in the slot when the bolt is obstructed by the presence of a paintball.