A modular firearm comprising an adjustable modular buttstock assembly. The buttstock assembly can include a frame with a central opening. A comb assembly having a cheek piece and a butt plate assembly having a recoil pad each can be mounted to the frame by an adjustment apparatus. Each adjustment ap
A modular firearm comprising an adjustable modular buttstock assembly. The buttstock assembly can include a frame with a central opening. A comb assembly having a cheek piece and a butt plate assembly having a recoil pad each can be mounted to the frame by an adjustment apparatus. Each adjustment apparatus can include of a guide post and/or a threaded adjustment post each received in respective bores in the frame to adjust the positions of the cheek piece and recoil pad. The adjustment apparatus also can include a locking or engagement feature that can selectively increase the friction between the frame and the guide post and/or adjustment post, to help prevent the translation of the guide post and/or adjustment post in the bore in the frame to fix the comb assembly and butt plate assembly in desired positions with respect to the frame.
대표청구항▼
1. A firearm, comprising: a receiver;a barrel;a fire control; andan adjustable buttstock assembly mounted to the receiver, comprising: a skeletonized frame comprising a substantially unitary body extending about and defining an open area,a comb assembly mounted to the frame by a first adjustment app
1. A firearm, comprising: a receiver;a barrel;a fire control; andan adjustable buttstock assembly mounted to the receiver, comprising: a skeletonized frame comprising a substantially unitary body extending about and defining an open area,a comb assembly mounted to the frame by a first adjustment apparatus and including a cheek piece,a butt plate assembly mounted to the frame by a second adjustment apparatus and including a recoil pad;wherein at least one of the first and second adjustment apparatus includes a lock mechanism for securing the cheek piece and/or the recoil pad in a desired position, the lock mechanism selectively causing at least a portion of the frame to frictionally engage the at least one of the first and second adjustment apparatus. 2. The firearm of claim 1, and further comprising a hinge pivotally connecting the adjustable buttstock assembly to the receiver to enable movement of the buttstock assembly with respect to the receiver. 3. The firearm of claim 1, wherein the lock mechanism is removably mountable along either side of the frame, and comprises a clamping mechanism having a moveable lever. 4. The firearm of claim 1, further comprising a bracket mounted within the open area defined by the frame for attachment of one or more accessories to the buttstock assembly. 5. The firearm of claim 4, wherein the bracket comprises a T-bracket received within the open area and mountable to the frame by a fastener. 6. The firearm of claim 1, and further comprising at least one rail platform mounted to the frame. 7. The firearm of claim 1, wherein each of the first and second adjustment apparatus comprises an adjustment post received through a bore formed within the frame and moveable through the bore of the frame for adjusting the position of the comb assembly and the butt plate assembly with respect to the frame. 8. The firearm of claim 7, further comprising a separation channel formed adjacent each bore through which the adjustment posts are received, and wherein the lock mechanisms of the first and second adjustment mechanisms each comprise a clamping mechanism mounted along the frame adjacent each separation channel, wherein upon actuation of each clamping mechanism, the frame is urged into frictional engagement with the adjustment post of the first or second adjustment apparatus associated with the actuated clamping mechanism. 9. The firearm of claim 8, wherein the first and second adjustment apparatus each further comprise a guide post attached to the comb assembly or the butt plate assembly, each guide post received through an additional bore formed through the frame, and wherein as each clamp mechanism is actuated, the frame is urged into frictional engagement with the guide post of the first or second adjustment apparatus associated with the actuated clamp mechanism. 10. The firearm of claim 1, wherein the lock mechanism is operable to deform at least a portion of the frame adjacent the at least one of the first and second adjustment apparatus. 11. An adjustable buttstock assembly for a firearm, comprising: a skeletonized frame defining an open space therewithin;a comb assembly mounted along the frame;a recoil pad assembly mounted along the frame; andat least one adjustment apparatus for adjustment of a position of at least one of the comb assembly and the recoil pad assembly with respect to the frame, the at least one adjustment apparatus including a lock mechanism for locking the at least one adjustment apparatus against adjustment;wherein the at least one adjustment apparatus further comprises a post received within and moveable through a bore formed in the frame, and the lock mechanism is operable to urge the frame into frictional engagement with the post to lock the post in a desired position with respect to the frame. 12. The adjustable buttstock assembly of claim 11, wherein the lock mechanism of the at least one adjustment apparatus comprises a toggle lock, slide lock, screw clamp or set screw. 13. The adjustable buttstock assembly of claim 11, wherein the lock mechanism of the at least one adjustment apparatus comprises a clamping mechanism having a throw lever pivotally mounted along the frame and including a cam surface, and as the throw lever is pivoted, the cam surface urges the frame into frictional engagement with the post to lock the post in a desired position with respect to the frame. 14. The adjustable buttstock assembly of claim 11, further comprising a first adjustment apparatus connected to the comb assembly for adjusting a position of the comb assembly with respect to the frame, and a second adjustment apparatus connected to the recoil pad for adjusting a position of the recoil pad with respect to the frame, wherein the first and second adjustment apparatus each comprise an adjustment post and a guide post received within and moveable through respective through-bores formed in the frame, and an adjustment wheel mounted along the adjustment post to enable a user to move the adjustment post through its through-bore. 15. The adjustable buttstock assembly of claim 14, further comprising a separation channel formed adjacent each through-bore through which the adjustment posts are received, and wherein the lock mechanisms of the first and second adjustment mechanisms each comprise a clamping mechanism mounted along the frame adjacent each separation channel, wherein upon actuation of each clamping mechanism, the frame is urged into frictional engagement with at least one of the adjustment post and/or guide post of the first or second adjustment apparatus associated with the actuated clamping mechanism. 16. The adjustable buttstock assembly of claim 11, further comprising at least one rail platform mounted to the frame. 17. The adjustable buttstock assembly of claim 11, and further comprising a bracket mountable within the open space defined by the frame for attaching an accessory to the frame. 18. The adjustable buttstock assembly of claim 11, wherein the lock mechanism of the at least one adjustment apparatus can be removed and mounted on an opposite side of the frame to enable ambidextrous operation thereof. 19. The adjustable buttstock assembly of claim 11, wherein the lock mechanism of the at least one adjustment apparatus comprises a pair of clamp plates mounted on opposite sides of a separation channel formed along the frame adjacent the at least one adjustment apparatus, and an adjustable fastener extending through the clamp plates and the frame, wherein the fastener is engaged to draw the clamp plates together, closing the separation channel such that the frame is brought into engaging contact with the at least one adjustment apparatus. 20. The adjustable buttstock assembly of claim 11, wherein the recoil pad assembly comprises a guide plate connected to the frame by an adjustment post of the at least one adjustment apparatus and a recoil pad moveably positioned along the guide plate, wherein the guide plate is adjustable in a first direction with respect to the frame and the recoil pad is adjustable in a second direction with respect to the guide plate. 21. The adjustable buttstock assembly of claim 20, further comprising a base attached to the recoil pad, and a detent mechanism mounted along the guide plate and having an engaging member moveable between a non-engaging position and an engaging position for engaging one of a plurality of notches formed along the base to enable selective adjustment of the recoil pad in the second direction. 22. The adjustable buttstock assembly of claim 11, wherein the lock mechanism is operable to deform at least a portion of the frame adjacent the bore and the post of the at least one adjustment apparatus. 23. An adjustable buttstock assembly for a firearm, comprising: a skeletonized frame comprising a substantially unitary body extending about and defining an open space therewithin;a comb assembly mounted along the frame;a recoil pad assembly mounted along the frame; andat least one adjustment apparatus mounted to at least one deflection portion of the frame for adjustment of a position of at least one of the comb assembly or the recoil pad assembly with respect to the frame, the at least one adjustment apparatus including a lock mechanism operable to urge the at least one deflection portion of the frame into frictional engagement with the at least one adjustment apparatus for locking the at least one adjustment apparatus against adjustment, the lock mechanism comprising a lever, toggle lock, slide lock, screw clamp, or set screw. 24. The adjustable buttstock assembly of claim 23, wherein the frame comprises a top portion extending from a front portion to a rear portion, the rear portion extending generally downwardly from the top portion, and a bottom portion extending from the rear portion to the front portion, and wherein the at least one adjustment apparatus comprises a first adjustment apparatus and a second adjustment apparatus, each including at least one post received through a bore formed along the frame, and wherein the comb assembly is mounted to the top portion of the frame by the first adjustment apparatus, and the recoil pad is mounted to the rear portion of the frame by the second adjustment apparatus.
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