Firearm loader

1. A firearm loader for transferring at least one cartridge to a firearm comprising:

a main body comprising a proximal end and a distal end; and

a follower disposed inside the main body, wherein:

the firearm loader comprises an engaged configuration wherein the firearm loader is at least partially inserted into a firearm;

the proximal end comprises an opening;

in the engaged configuration, the opening approximately faces a magazine of the firearm; and

the opening faces a direction that is non-parallel with a length of the main body.

2. The firearm loader of claim 1 , wherein, in the engaged configuration, the firearm loader is at least partially inserted into an ejection port of the firearm.

3. The firearm loader of claim 1 , further comprising at least one spring disposed adjacent to the opening, wherein the at least one spring restricts movement of the at least one cartridge through the opening.

4. The firearm loader of claim 1 , wherein:

the main body comprises a channel that extends along at least part of the length of the main body; and

the follower can be manipulated through the channel.

5. The firearm loader of claim 4 , further comprising at least one indexing portion connected to the follower, wherein at least one edge of the channel comprises a series of protrusions and recesses, such that the at least one indexing portion engages the recesses to hold the follower in a given position.

6. The firearm loader of claim 4 , wherein the channel comprises an opening through at least a portion of a wide side of the main body.

7. The firearm loader of claim 1 , wherein the follower comprises a ring portion that can be manipulated through a channel in the main body to move the follower.

8. The firearm loader of claim 7 , wherein the ring portion comprises at least one indexing portion that interfaces with at least one locating feature of the main body.

9. The firearm loader of claim 8 , wherein the at least one indexing portion extends from at least one of an axial direction and a circumferential direction of the ring portion.

10. The firearm loader of claim 1 , wherein the proximal end comprises a protrusion and, in the engaged configuration, the protrusion engages an interior feature of the firearm.

11. The firearm loader of claim 10 , wherein the interior feature comprises a bolt of the firearm.

12. The firearm loader of claim 1 , further comprising at least one flexible member disposed adjacent to a longitudinal end of the opening.

13. The firearm loader of claim 1 , wherein the follower comprises at least one spacer attached to a leading edge of the follower.

14. The firearm loader of claim 1 , further comprising at least one cartridge moving portion adjacent to the opening.

15. A firearm loader that holds a plurality of cartridges comprising:

a main body comprising a proximal end and a distal end;

an opening at the proximal end of the main body;

a follower disposed inside the main body such that the follower moves at least part of a distance between the proximal end and the distal end, at least one indexing portion connected to the follower;

an engaged configuration where the firearm loader is at least partially inserted into an ejection port of a firearm; and

a disengaged configuration, wherein:

the main body comprises a channel that extends along at least part of a length of the main body;

the follower can be manipulated through the channel; and

at least one edge of the channel comprises a series of protrusions and recesses, such that the at least one indexing portion engages the recesses to hold the follower in a given position.

16. The firearm loader of claim 15 , further comprising at least one spring disposed adjacent to the opening, wherein the at least one spring restricts movement of at least one of the plurality of cartridges through the opening.

17. The firearm loader of claim 15 , wherein the follower comprises a ring portion that can be manipulated through a channel in the main body to move the follower.

18. The firearm loader of claim 15 , further comprising at least one flexible member disposed adjacent to a longitudinal end of the opening.

19. A firearm loader for transferring at least one cartridge to a firearm comprising:

a main body comprising a proximal end and a distal end; and

a follower disposed inside the main body, wherein:

the firearm loader comprises an engaged configuration wherein the firearm loader is at least partially inserted into a firearm;

the proximal end comprises an opening; and

the opening faces a direction that is not aligned with a length of the main body such that the at least one cartridge exits the firearm loader in a direction that is non-parallel with the length of the main body.

20. The firearm loader of claim 19 , wherein the channel comprises an opening through at least a portion of a wide side of the main body.