Shell stripper assembly
View Patent ↗A shell stripper assembly includes a shell stripper, a stripper guide, a stripper guide plate, and a magazine insert. The shell stripper strips the top round from the firearm magazine so that it can be picked up by the firearm breech bolt. The shell stripper slides between guide rails of the stripper guide, and its motion is controlled by the stripper guide plate.
1. A firearm, including a shell stripper assembly, the shell stripper assembly comprising:
a shell stripper comprising a first elongate leg and a second elongate leg spaced from said first leg, and a first tab extending from said first leg;
a stripper guide comprising a first guide rail and a second guide rail, said shell stripper being sized to be received between said first and second guide rails;
a stripper guide plate adapted to be received between the shell stripper and the stripper guide; and
a magazine insert adapted to support a magazine therein, wherein said firearm further comprises:
a receiver;
a barrel operably connected to said receiver;
a chamber disposed at a rear end of said barrel;
a magazine disposed to the rear of said chamber in said magazine insert;
an axially translatable breech bolt that is engageable with said chamber; and
an action mechanism extending along a length of said firearm and axially translatable along with said breech bolt, wherein
said shell stripper is mounted within said firearm to cooperate with said action mechanism to strip rounds from said magazine, and
said stripper guide plate is fixedly mounted in the firearm and in slidable engagement with said shell stripper.
2. The firearm of claim 1 , wherein said shell stripper further comprises:
a second tab extending from a rear portion of said second leg.
3. The firearm of claim 1 , wherein said shell stripper further comprises:
a first guide groove;
a second guide groove; and
wherein said stripper guide plate is sized to be received and to slidably translate within said first and second guide grooves.
4. The firearm of claim 3 , wherein said shell stripper further comprises:
at least one projection extending from a rear portion of said first leg.
5. The firearm of claim 1 , wherein said first leg comprises a hinge portion.
6. The firearm of claim 1 , wherein said stripper guide further comprises:
a magazine box clearance formed in a front of said stripper guide.
7. The firearm of claim 1 , wherein said stripper guide further comprises:
a hammer clearance formed in a rear portion of said stripper guide.
8. The firearm of claim 1 , wherein said stripper guide further comprises:
first mounting means along an underside portion of said stripper guide.
9. The firearm of claim 8 , wherein said magazine insert comprises:
second mounting means at an upper portion of said magazine insert designed to engage said first mounting means in said stripper guide.
10. The firearm of claim 9 , wherein said magazine insert further comprises:
first, second, third, and fourth walls defining a magazine receiving slot; and
a magazine latch clearance formed in said second wall.
11. The firearm of claim 1 , wherein said stripper guide plate comprises:
a hammer clearance aperture extending along an intermediate section of said stripper guide plate.
12. The firearm of claim 11 , wherein said stripper guide plate comprises:
a rear portion having inclined shoulders.
13. The firearm of claim 1 , wherein said shell stripper is slidably mounted in said stripper guide.
14. The firearm of claim 13 , wherein said magazine is mounted within said magazine insert below said breech bolt.
15. The firearm of claim 13 , wherein said breech bolt is slidable over an upper surface of said shell stripper.
16. A firearm, comprising:
a barrel;
a chamber disposed at a rear end of said barrel;
a magazine disposed adjacent said chamber;
an action mechanism axially translatable along a length of said firearm;
a shell stripper assembly mounted within said firearm and adapted to cooperate with said action mechanism and to strip rounds from said magazine; and
an axially translatable breech bolt cooperating with said action mechanism and said shell stripper assembly and engageable with said chamber, wherein said shell stripper assembly comprises:
a shell stripper that is releasably engageable with said action mechanism and is movable with said action mechanism, said shell stripper having an engagement surface adapted to engage a round of ammunition within said magazine;
a stripper guide fixedly mounted within said firearm, wherein said shell stripper is slidably mounted within said stripper guide and
wherein said breech bolt rests on an upper surface of said shell stripper.
17. The firearm of claim 16 , wherein said shell stripper further comprises a first elongate leg and a second elongate leg joined at a nose portion, said engagement surface being disposed at said nose portion.
18. The firearm of claim 16 , wherein said stripper guide comprises:
a first guide rail and a second guide rail, said shell stripper being slidably mounted between said first and second guide rails.
19. The firearm of claim 18 , wherein said stripper guide further comprises:
a magazine box clearance formed in a front of said stripper guide; and
a hammer clearance formed in a rear of said stripper guide.
20. The firearm of claim 16 , wherein said shell stripper assembly further comprises:
a stripper guide plate fixedly mounted in said firearm and in slidable engagement with said shell stripper.
21. The firearm of claim 20 , wherein said shell stripper further comprises:
a first guide groove; and
a second guide groove, wherein said stripper guide plate is slidably received within said first and second guide grooves.
22. The firearm of claim 21 , further comprising a hammer, wherein said stripper guide plate comprises:
a hammer clearance aperture extending along an intermediate section of said stripper guide plate, the hammer being movable through the hammer clearance aperture; and
a rear portion having inclined shoulders.
23. The firearm of claim 16 , further comprising:
a magazine insert mounted below said breech bolt and housing said magazine, wherein said magazine insert comprises first, second, third, and fourth walls defining a magazine receiving slot.
24. The firearm of claim 23 , wherein said magazine insert supports said magazine such that a top round in said magazine is oriented at a non-zero angle with respect to an axis of said breech bolt.
25. The firearm of claim 24 , wherein said non-zero angle is in a range of about 2-10 degrees.
26. The firearm of claim 23 , wherein said magazine insert further comprises mounting means at an upper portion of said magazine insert designed to engage mounting means in said stripper guide.
27. A firearm, comprising:
a barrel;
a chamber disposed at a rear of said barrel;
a magazine disposed adjacent said chamber;
an action mechanism axially translatable along a length of said firearm;
a shell stripper assembly adapted to cooperate with said action mechanism and to strip rounds from said magazine, said shell stripper assembly comprising:
a shell stripper that is releasably engageable with said action mechanism and is movable with said action mechanism; and
a stripper guide, said shell stripper being slidably mounted in said stripper guide;
a translatable breech bolt cooperating with said action mechanism and said shell stripper and engageable with said chamber; and
a stripper guide plate fixedly mounted in said firearm between said shell stripper and said stripper guide and in slidable engagement with said shell stripper.
28. The firearm of claim 27 , further comprising a hammer, wherein said stripper guide plate comprises a hammer clearance aperture extending along an intermediate section of said stripper guide plate, said hammer being mounted for movement through said hammer clearance.
29. The firearm of claim 27 , wherein said breech bolt is slidable over an upper surface of said shell stripper.