Bk1s Bk2s mag magazine, multiple size options

This is an improved version of my original bk mag https://www.printables.com/model/1219069-bk1s-bk2s-magazine-short-10-dart-12-dart-max

I have multiple lengths for different print bed sizes 180mm, 220mm 250mm.
Only 180 has been tested due to my print bed size

These mags use a talon spring, most short dart mag springs should work.
Even the official bk mags don't feed well with darts longer than 36mm, these mags are the same, so only use normal 36mm length darts

Mk2 changes

The base plate now sits internally for a slimmer profile,
The follow and spring rest have been reduced in height to compensate for the internal base plate,
new follower design to position darts better for feeding,

Print guide.

printed with 0.2 height, 3 wall, infill 25%
 

Print Items.

Left part*
Right part*
follower
spring rest
base plate
*choose length
 

Parts.

Talon spring (or similar)
silicone spray (eg GT85)
PLA suitable glue (superglue works)
 

Build Guide.

1. Spray on some lube onto both left and right sides.
2. Fit the halves together, push them together evenly. (glue the halves together once its been tested working) 
3. Slide in the follower making note of its orientation (optionally screw the spring to the follower)
4. Slide in the spring if not attached to the follower
5. Compress the spring and put in the spring rest
6. Slide on the base plate
7. Make sure the spring rest fits into the bottom cap

Info and Tips.

The spring tension keeps the spring rest locked into base plate stopping the base plate being accidently removed. If the sides aren't glued he follower can push past its stops at the top of the magazine the base plate could also slip out of the guides, causing you to loose all your darts onto the floor.
When gluing the sides together make sure no glue drips inside the mags the will cause feeding issues
Poor Feeding:
make sure you use short 36mm darts only, relube the mags, make sure the follower slides freely, use a longer/stronger spring, try fresh darts.