Ammunition magazine with four ammunition stacks
View Patent ↗The present invention is a high capacity, non-drum magazine. The high capacity magazine comprises a broad general storage area capable of holding four staggered stacks of ammunition, a unified follower on a spring system biasing the follower and associated ammunition, a central partition a barrier separating two dual staggered round stacks and around which the follower will pass, and a transition area between the feed end of the magazine and the storage area. The spring may be a composite spring system, made of two springs joined in series, or a single, variable constant, spring.
1. An ammunition magazine comprising:
a. A magazine casing, further comprised of:
i. a lower storage section with a rectangular cross-sectional area, having two longer sides and two shorter sides;
ii. an upper feed section with a rectangular cross-sectional area, likewise having two longer sides and two shorter sides corresponding to the longer and shorter sides of the lower storage section and the cross-sectional area of the upper feed section being smaller than that of the lower storage section; and
iii. a medial transitional area with a variable and asymmetrical cross-sectional area gradually decreasing from the cross-sectional area of the storage section to the cross-sectional area of the feed section, the shorter sides of the lower storage section and the upper feed sections defining shorter sides of the magazine casing and one of the shorter sides of the casing being defined as a spine;
b. a floor plate, capable of interface about an orifice of the storage section;
c. a locking plate, residing internal of the orifice of the storage section further comprising an interface tab, projecting from an obverse side in a manner to interface with the floor plate and a partition extending from a reverse side of the lock plate into an interior of the storage section of the casing;
d. a follower spring;
e. a spring guide positioned on the spring in a manner to interface with the spine of the magazine and assist progression of the spring through the magazine; and
f. a follower having a slit such that it is capable of straddling the partition.
2. The magazine of claim 1 , the follower having at least one pivotable bail.
3. The magazine of claim 1 , the follower spring being a composite spring comprising a plurality of springs, representing at least two different spring constants, connected in series to each other.
4. The magazine of claim 3 , the follower having at least one pivotable bail.
5. The magazine of claim 3 , the plurality of springs being joined by a spring splicing apparatus comprising the spring guide projecting from a side of the splicing apparatus in a manner to interface with the spine of the casing.
6. The magazine of claim 5 , the follower having at least one pivotable bail.
7. The magazine of claim 1 , the casing being of one piece, having no separable parts.
8. The magazine of claim 7 , the follower having at least one pivotable bail.
9. The magazine of claim 7 , the follower spring being a composite spring comprising a plurality of springs, representing at least two different spring constants, connected in series to each other.
10. The magazine of claim 9 , the follower having at least one pivotable bail.
11. The magazine of claim 9 , the plurality of springs being joined by a spring splicing apparatus, said apparatus comprising the spring guide.
12. The magazine of claim 11 , the follower having at least one pivotable bail.
13. The magazine of claim 7 , the casing having a constant internal curve.