Firearm with enhanced recoil and control characteristics
View Patent ↗The invention comprises an improved recoil control device comprising a bolt head and an inertia block or slider for use in a variety of firearms. In one embodiment, the bolt head and inertia block are articulated so that the displacement of the bolt head results in a force component outside the firing axis of the barrel of the firearm. The device can be incorporated into firearms of a variety of sizes and configurations to produce recoil reduction and/or weight reduction advantages.
1. A semiautomatic or automatic firearm comprising:
a bolt head configured to alternate between a forward position and a rearward position in response to the firing of one or more cartridges, wherein at the forward position the bolt head moves along the longitudinal axis of the barrel, and at the rearward position the bolt head tilts out of the longitudinal axis of the barrel, and at an intermediate position at least part of the bolt head begins tilting out of the longitudinal axis of the barrel during the movement between forward and rearward positions; and
a slider comprising an initial or first sloped surface and a second sloped surface, the slider configured to contact the bolt head or a linkage to the bolt head at the first and second sloped surfaces;
wherein the bolt head is configured to transmit an impulse to the slider as the bolt head alternates between the forward position and the rearward position, the impulse having a component perpendicular to the firing axis of the barrel of the firearm.
2. The firearm of claim 1 , further comprising a handgrip located behind the barrel of the firearm, whereby the upward jerking of the firearm from the firing of one or more cartridges is substantially eliminated.
3. The firearm of claim 2 , wherein the axis of the gun barrel intersects the handgrip between about 5% to about 95% of the height from the top of the handgrip.
4. The firearm of claim 1 , further comprising a stock located behind the barrel of the firearm.
5. The firearm of claim 4 , wherein the axis of the gun barrel intersects the stock between about 5% to about 95% of the height from the top of the stock.
6. The firearm of claim 1 , wherein the firearm is designed for .45 caliber ammunition.
7. The firearm of claim 1 , wherein the ratio of slider mass to bolt head mass is approximately 2 to about 4.
8. The firearm of claim 1 , wherein the ratio of slider mass to bolt head mass is approximately 2.5 to about 3.
9. The firearm of claim 1 , wherein the bolt head tilts about a projection on the surface bolt head.
10. The firearm of claim 1 , wherein the bolt head is connected to the slider by a tenon or other linkage.
11. The firearm of claim 1 , wherein the bolt head is connected to the slider by a linkage that comprises a transverse spindle perpendicular to the axis of the gun barrel, the spindle connected to the bolt head and arranged to slide between the first sloped surface and the second sloped surface of the slider.
12. The firearm of claim 1 , further comprising a muzzle brake.