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A multi-caliber ambidextrously controlled firearm that includes an adjustable ejection system to facilitate the ejection of spent cartridge casings from a firearm. The adjustable ejection system includes an ejection port defined by an aperture in the firearm and a deflector. The deflector is attach

A multi-caliber ambidextrously controlled firearm that includes an adjustable ejection system to facilitate the ejection of spent cartridge casings from a firearm. The adjustable ejection system includes an ejection port defined by an aperture in the firearm and a deflector. The deflector is attached to the firearm to adjust the size of the ejection port and may be attached at one of at least two attachment positions of the firearm. The adjustable ejector system includes an ejector selectively attached to the firearm at one of at least two ejector attachment positions. The improved firearm also includes an ambidextrous magazine catch system for selectively retaining a magazine within a firearm. The magazine catch system includes a first button opposite a second button such that either button may be actuated by a user to release the magazine retained with the firearm.

대표청구항 ▼

The invention claimed is: 1. An improved firearm comprising: a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm, wherein the first button is disposed in proximity to the trigger guard, wherein depression of the first button rele

The invention claimed is: 1. An improved firearm comprising: a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm, wherein the first button is disposed in proximity to the trigger guard, wherein depression of the first button releases a magazine disposed within the magazine well; a bolt hold open system comprising a bolt hold open control arm extending as low as at least a portion of the trigger guard; and wherein the bolt hold open control arm extends along both sides of the trigger guard such that the trigger guard is at least partially nested within the bolt hold open control arm. 2. An improved firearm comprising: a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm, wherein the first button is disposed in proximity to the trigger guard, wherein depression of the first button releases a magazine disposed within the magazine well; a bolt hold open system comprising a bolt hold open control arm extending as low as at least a portion of the trigger guard; and wherein the magazine catch system comprises a second button accessible from an opposing side of the firearm, wherein depression of the second button releases the magazine disposed within the magazine well and wherein the magazine catch system is configured so that if the first button is depressed, the second button moves toward the first button. 3. An improved firearm comprising: a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm, wherein the first button is disposed in proximity to the trigger guard, wherein depression of the first button releases a magazine disposed within the magazine well; a bolt hold open system comprising a bolt hold open control arm extending as low as at least a portion of the trigger guard; and wherein the magazine catch system further comprises a second button accessible from an opposing side of the firearm, wherein depression of the second button releases the magazine disposed within the magazine well and wherein the magazine catch system further comprises a catch arm having a catch surface, wherein the catch surface engages the magazine to retain the magazine in the magazine well of the firearm, wherein if either button is depressed, the catch surface moves out of engagement with the magazine. 4. The improved firearm of claim 3, wherein the magazine catch system further comprises a catch guide pin extending through the first and second buttons, wherein depression of either button forces the catch guide pin to move and thereby move the opposing button toward the depressed button. 5. The improved firearm of claim 4, wherein the first button includes a first angled slot and the second button includes a second angled slot extending at an angle different than the first angled slot, wherein the catch guide pin is disposed within both angled slots. 6. An improved firearm comprising: a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm, wherein the first button is disposed in proximity to the trigger guard, wherein depression of the first button releases a magazine disposed within the magazine well; a bolt hold open system comprising a bolt hold open control arm extending as low as at least a portion of the trigger guard; and wherein the magazine catch system further comprises a second button accessible from an opposing side of the firearm, wherein depression of the second button releases the magazine disposed within the magazine well wherein the bolt hold open control arm is disposed below the first and second buttons. 7. An improved firearm comprising: a back end; a barrel; a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm and a second button accessible on an opposite side of the firearm wherein depression of either button releases a magazine disposed within the magazine well; and a bolt hold open system comprising a bolt hold open control arm extending as low as at least a portion of the trigger guard and located rearward of the magazine well to be in closer proximity to the back end than the magazine well and at least a portion of the bolt hold open control arm located forward of the trigger guard to be in closer proximity to the barrel than the trigger guard. 8. The improved firearm of claim 7, wherein the trigger guard and the bolt hold open control arm are disposed adjacent each other such that a trigger finger of a hand may extend from a position within the trigger guard to a position contacting the bolt hold open control arm while maintaining the same position of a palm of the hand. 9. The improved firearm of claim 7, wherein the bolt hold open control arm is configured to be accessible on an opposing side. 10. The improved firearm of claim 9, wherein the bolt hold open control arm extends along both sides of the trigger guard. 11. The improved firearm of claim 7, wherein the bolt hold open system further comprises a bolt hold open body, wherein the bold hold open body extends through the magazine catch system. 12. The improved firearm of claim 7, further comprising a second button accessible on an opposing side of the first button, wherein depression of the second button releases the magazine disposed in the magazine well. 13. The improved firearm of claim 12, wherein the magazine catch system is configured so that if the first button is depressed, the second button moves toward the first button. 14. The improved firearm of claim 12, wherein the magazine catch system further comprises a catch arm having a catch surface, wherein the catch surface engages the magazine to retain the magazine in the magazine well of the firearm, wherein if either button is depressed, the catch surface moves out of engagement with the magazine. 15. The improved firearm of claim 14, wherein the magazine catch system further comprises a catch guide pin extending through the first and second buttons, wherein depression of either button forces the catch guide pin to move and thereby move the opposing button toward the depressed button. 16. The improved firearm of claim 15, wherein the first button includes a first angled slot and the second button includes a second angled slot extending at an angle different than the first angled slot, wherein the catch guide pin is disposed within both angled slots. 17. The improved firearm of claim 12, wherein the bolt hold open control arm is disposed below the first and second buttons. 18. The improved firearm of claim 7, further comprising a trigger and wherein the distance between a portion of the bolt hold open control arm and the trigger is approximately equidistant to the distance between the first button and the trigger. 19. An improved firearm comprising: a magazine well; a trigger guard extending in a first direction substantially perpendicular to a first side of the firearm and in a second direction substantially perpendicular to a second side of the firearm and opposite the first direction; a magazine catch system comprising a first button accessible from the first side of the firearm wherein depression of the first button releases a magazine disposed within the magazine well; and a bolt hold open system comprising a bolt hold open control arm comprising, a first portion extending in the first direction further than the trigger guard extends in the first direction; and a second portion extending in the second direction further than the trigger guard extends in the second direction. 20. The improved firearm of claim 19, wherein the bolt hold open control arm extends as low as approximately the bottom of the trigger guard. 21. The improved firearm of claim 19, wherein the bolt hold open system further comprises a bolt hold open body, wherein the bold hold open body extends through the magazine catch system. 22. The improved firearm of claim 19, further comprising a trigger and wherein the distance between a portion of the bolt hold open control arm and the trigger is approximately equidistant to the distance between the first button and the trigger. 23. The improved firearm of claim 19, wherein the bolt hold open control arm is disposed below the first button. 24. An improved firearm comprising: a magazine well; a trigger; a trigger guard located proximate to the trigger; a magazine catch system comprising a first button accessible from a side of the firearm wherein depression of the first button releases a magazine disposed within the magazine well; and a bolt hold open system comprising a bolt hold open control arm extending as low as at least a portion of the trigger guard, wherein the bolt hold open control arm extends along both sides of the trigger guard such that the trigger guard is at least partially nested within the bolt hold open control arm. 25. An improved firearm comprising: a back end; a barrel; a magazine well; a trigger guard; a magazine catch system comprising a first button accessible from a side of the firearm and a second button accessible on an opposite side of the firearm, wherein depression of either button releases a magazine disposed within the magazine well; and a bolt hold open system comprising a bolt hold open control arm disposed below the first and second buttons and extending as low as at least a portion of the trigger guard and located rearward of the magazine well to be in closer proximity to the back end than the magazine well and at least a portion of the bolt hold open control arm located forward of the trigger guard to be in closer proximity to the barrel than the trigger guard.