Magpump - hellcat magazine sleeve

Jack Brush 1.8MiB Released August 15, 2025, 7:17 PM 0.010LBC 0 Reposts

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This is a magazine sleeve to make the magpump compatible with the Springfield Hellcat

README
for my own print I used polymaker PETG with the standard .2 settings with a .4mm nozzle.

supports wont generate on the magazine lugs which may not be an issue or really much of anything. I did however paint supports on with bambu/prusa slicers support painting feature.
It probably wasnt necessary.
the magazine sleeve lug recess was not supported and mine printed without issue, its a much larger bridge than the magazine release lugs.

1. Inserts just like the other magpump magazine sleeves
2. Put the magazine in at an angle and then drag it until the lugs engage with the magazine lug recesses
3. Push the sleeve in until the magazine sleeve lug enganged with the sleeve release, it should be fairly solidly in the magpump at this point
4. load as you have before, you will see the magazine move a bit but it shouldnt cause any issues.

remixing
in order to reuse this model to make another magazine compatible you will only need to modify the magazine release lugs. they need sit at different heights depending on where on the magazine body
the magazine lug recesses/cutouts are. for the glock it had the same magazine lug recesses as this hellcat model. However, for the CZ mag sleeve and with a 226 magazine in it
(they make a sig specific magazine sleeve but apparently the CZ one works with most 2xx series sig magazines) the lugs we're much lower. What you are looking to do is have the tallest point of the
magazines feed lips sit about 16.5mm from the closest point on the sleeve. There is a large amount of tolerance here, feels like +/- 1mm. You may have to modify the magazine sleeves inner radii as well as the
width of the inner sleeve to fit the magazine but looking at the 226 mags in the cz sleeve they do not have to be perfect like I did for the hellcat.
You should be able to leave the outer lugs and magazine sleeve recess, lip whatever alone.

if you are going to use PLA or something stiff you may want to elongate the cutout in the middle of the sleeve so they lugs can be bent in.
I initially had it the same as the magpump sleeves that came with the machine but noticed it was way too flexible in PETG so I shortened it. Anyway getting the magazine lugs correct will be
the biggest hurdle. just measure the recesses depth and length and make the lug or lugs .5mm smaller. should work like the hellcats model does. You should not need to chamfer the lugs.

fairly easy project imo.

guncadindex tags:
9x19mm
magpump
springfield Hellcat
Reference Model
accessory

LBRY Tags: 9x19mm; magpump; springfield hellcat; reference model; accessory