Recoil abatement stock with reduced rattle
View Patent ↗A recoil reduction system for a firearm. In some embodiments, the recoil reduction includes buffer tube housed within a buttstock, and a deformable structure for setting a clearance tolerance between the buffer tube and the buttstock to reduce lateral play while enabling smooth translation therebetween. In some embodiments, a guide pin and/or skid projections provide interference between the sliding components of the recoil reduction system when in a battery configuration, while releasing the interference during a recoil event.
1. A recoil abatement system for a firearm, comprising:
a housing;
a slide member translatable within said housing along an actuation axis, said slide member being configured for coupling to a receiver;
a canted guide slot defined on a lateral face of one of said housing and said slide member, said canted guide slot having a first end segment that is canted relative to a direction of said actuation axis; and
a guide pin extending laterally from the other of said housing and said slide member, said guide pin extending into said canted guide slot,
wherein said guide pin is within said first end segment when the recoil abatement system is in a battery configuration; and
wherein said guide pin and said canted guide slot are configured to laterally offset said slide member relative to said actuation axis so that said slide member registers against said housing when the recoil abatement system is in said battery configuration.
2. The recoil abatement system of claim 1 , comprising:
a buttstock defining a longitudinal bore;
a biasing element operatively coupled with said buttstock and said slide member;
and
a buffer tube configured for insertion into said longitudinal bore along said actuation axis, said longitudinal bore being configured for a clearance fit with said buffer tube,
wherein said buttstock includes a deformable structure adapted to selectively reduce a dimension of said longitudinal bore to configure said buttstock for a close sliding fit between said longitudinal bore and said buffer tube.
3. The recoil abatement system of claim 1 , wherein said dimension is a diameter of said longitudinal bore about said actuation axis.
4. The recoil abatement system of claim 1 , wherein said deformable structure is located proximate a distal end of said buttstock.
5. The recoil-abatement system of claim 4 , wherein said deformable structure includes:
a longitudinal through slot defined proximate said distal end of said buttstock, said longitudinal slot being at least partially defined by opposing lateral sides; and
a fastener arranged to draw said opposing lateral sides towards each other to reduce said dimension of said longitudinal bore.
6. The recoil abatement system of claim 1 , wherein:
said buffer tube includes a plurality of recesses formed on a lateral side thereof;
said buttstock includes structure defining a lateral through passage for selective alignment with any one of said plurality of recesses; and
a set pin is disposed within said lateral through-passage for selective engagement with any one of said plurality of recesses for anchoring said buffer tube to said buttstock.
7. The recoil abatement system of claim 6 , comprising:
a lever pivotally mounted to said buttstock and operatively coupled with said set pin for selectively removing said set pin from said any one of said plurality of recesses.
8. The recoil abatement system of claim 7 , further comprising a biasing element coupled to said set pin for biasing said set pin to engage with said buffer tube.
9. The recoil abatement system of claim 1 , comprising a butt pad coupled to a proximal end of said buttstock, wherein said butt pad defines an open cell structure that is exposed to ambient air.
10. The recoil abatement system of claim 9 , wherein any one of said buttstock, said butt pad, and said biasing element is formed of a polymer material.
11. The recoil abatement system of claim 1 , wherein said longitudinal bore is defined by a bore wall in the buttstock, wherein the bore wall includes at least one rib that protrudes toward said actuation axis, said dimension of said longitudinal bore being referenced from said at least one rib.
12. The recoil abatement system of claim 1 , wherein said deformable structure is unitary with said buttstock.
13. The recoil abatement system of claim 1 , wherein:
one of said housing and said slide member defines a channel and the other of said housing and said slide member includes a rail disposed in said channel, said channel and said rail extending parallel to said actuation axis; and
said rail is biased against a wall of said channel to register said slide member against said housing.
14. The recoil abatement system of claim 1 , wherein said housing is a hand grip assembly.
15. A recoil abatement system for a firearm, comprising:
a housing;
a slide member translatable within said housing along an actuation axis, said slide member being configured for coupling to a receiver; and
means for preventing rattle and play between said slide member and said housing when the recoil abatement system is in a battery configuration, wherein said means for preventing rattle and play comprises
a biasing element coupled to said slide member to bias said slide member in a distal direction within said housing when the recoil abatement system is in said battery configuration;
a canted guide slot defined on a lateral face of one of said housing and said slide member, said canted guide slot having a first end segment that is canted relative to a direction of said actuation axis; and
a guide pin extending laterally from the other of said housing and said slide member, said guide pin extending into said canted guide slot,
wherein said biasing element exerts a biasing force against said slide member to seat said first end segment of said canted guide slot against said guide pin when the recoil abatement system is in said battery configuration, thereby offsetting said slide member relative to said actuation axis so that said slide member registers against said housing when the recoil abatement system is in said battery configuration.
16. A recoil abatement system for a firearm, comprising:
a housing;
a slide member translatable within said housing along an actuation axis, said slide member being configured for coupling to a receiver; and
means for preventing rattle and play between said slide member and said housing when the recoil abatement system is in a battery configuration, wherein said means for preventing rattle and play comprises:
a biasing element coupled to said slide member to bias said slide member in a distal direction within said housing when the recoil abatement system is in said battery configuration;
a flared through-slot defined on said slide member, said flared through-slot being elongate along an axis that is parallel to said actuation axis; and
a guide pin extending laterally from said housing and extending into said flared through-slot,
wherein a rearward end of said flared through-slot is shaped and dimensioned to accommodate a contour of said guide pin,
wherein said biasing element exerts a biasing force against said slide member to seat said rearward end of said flared through-slot against said guide pin when the recoil abatement system is in said battery configuration, thereby offsetting said slide member relative to said actuation axis so that said slide member registers against said housing when the recoil abatement system is in said battery configuration.
17. A recoil abatement system for a firearm, comprising:
a housing;
a slide member translatable within said housing along an actuation axis, said slide member being configured for coupling to a receiver; and
means for preventing rattle and play between said slide member and said housing when the recoil abatement system is in a battery configuration, wherein said means for preventing rattle and play comprises:
a biasing element coupled to said slide member to bias said slide member in a distal direction within said housing when the recoil abatement system is in said battery configuration;
a first flared surface disposed on said slide member, said first flared surface defining a slope with respect to said actuation axis, said first flared surface sloping away from said actuation axis in a proximal direction, such that the a first width at a distal portion of said slide member is of smaller dimension than a second width at a proximal portion of said slide member; and
a second flared surface disposed on said housing, said second flared surface defining a slope with respect to said actuation axis that is complementary to said first flared surface,
wherein said biasing element exerts a biasing force against said slide member to seat said first flared surface against said second flared surface when the recoil abatement system is in said battery configuration.
18. The recoil abatement system of claim 17 , wherein said first flared surface and said slide member are unitary and said second flared surface and said housing are unitary.
19. A recoil abatement system for a firearm, comprising:
a housing,
a slide member translatable within said housing along an actuation axis, said slide member being configured for coupling to a receiver; and
means for preventing rattle and play between said slide member and said housing when the recoil abatement system is in a battery configuration, wherein said means for preventing rattle and play comprises:
a biasing element coupled to said slide member to bias said slide member in a distal direction within said housing when the recoil abatement system is in said battery configuration;
a first inclined surface defined on said slide member, said first inclined surface defining a slope with respect to said actuation axis; and
a second inclined surface defined on said housing, said second inclined surface defining a slope with respect to said actuation axis that is complementary to said first inclined surface,
wherein said biasing element exerts a biasing force against said slide member to seat said first inclined surface against said second inclined surface when the recoil abatement system is in said battery configuration.