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Crosman 1377 Rotary Mag - 5 pellets

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A1 mini
X1 Carbon
X1E
H2D
H2D Pro
P1P
P1S
P2S
H2S
X1
A1
H2C
X2D
A2L

0.2mm layer, 6 walls, 25% infill
0.2mm layer, 6 walls, 25% infill
Designer
48 min
2 plates
5.0(5)

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Description

Hello, this is my model that allows crosman 1377 owners to add a 5 shot rotary mag to their air rifle. This is designed for stock models with the plastic breach. If you have  steel breech, you have a lot of amazing options from other 3d model sits. 

 

This allows for a very low profile, and easily detachable mag. Another benefit from other mag loaders is this is 100% reverted back to stock with simply removing the mag, and unlike other designs, noting is left that may inhibit you from single loading. 

 

At only 5 grams of filament, you can print several of these and have them ready for a nice pinking session. 

To load, simply drop a pellet into the mag, and rotate clockwise, next the mag simply clips onto the breech, and you're ready to go. 

 

When you need to reload, simply pull back the charging handle and rotate the knob clockwise one position.

HINT: You may want to mark one of the lobes on the mag with a marker so you can tell you've rotated to the next position.

 

Hope you find this useful, please check my other models for some Crosman designs.

 

IMPORTANT: Please print in regular PLA, tough PLA or some other durable material. This is because of the peg that the rotary mag sits on needs to have some strength to be durable. Printing in a silk or weaker material will lead to a broken peg, and a waste of time and materials.

 

NOTE: I've included on the second build plate another mag option. I prefer one with defined groves so I can grasp, but this was an earlier design and some might prefer this one. 

Comment & Rating (13)

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0.2mm layer, 6 walls, 25% infill
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Cool thanks so much for sharing! I've got a couple other 1377 designs if you havent seen them yet.
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0.2mm layer, 6 walls, 25% infill
Printed great in overture easy PLA. A very interesting design with a lot of potential but I did find it fiddly and ended up causing jams because the pellets wouldn't always load straight out the loader. Will have to try it again, very probably user error! Thanks for the model.
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thanks so much for the feedback! I find pointed pellets work well with this and helps if you angle the 1377 downwards to help with gravity. a known issue is with the breech screw and how there is a small dip which can cause some pellets to get hung up. some people will use a bit of wax to smoothen the area or shim up the screw slightly. that might help with reliability.
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0.2mm layer, 6 walls, 25% infill
Thank you Sharing! I have been needing one of these to upgrade from the Pellet Pen...PS. If you get any free time, a Trigger Guard/Cover is really the last upgrade we need for the 1377 on Bambu Labs. Great work regardless🫡💥🔫
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You're very welcome! Hope this transforms the way you use your 1377 in the same way it did for me. It takes it to a whole new level being able to reload quickly. I havent found a free trigger shoe just yet, but if you are willing to spend less than a dollar, there is this one on CULTS. If you are handy with a drill and can tap a hole, adding a trigger stop also make an immense difference to this as well. https://cults3d.com/en/3d-model/tool/crosman-trigger-boot-1377-1322-2240-362-and-other-models
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0.2mm layer, 6 walls, 25% infill
a little difficult to insert if you have a scope near the breach but still a nice loader
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Thanks for the rating! I agree, I put an LPVO on mine, and I have to sort of pivot the mag back a bit to get it under the scope.
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⭐️ works if you are very careful but not a great model
The designer has replied
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any insights on what could be better? or what issues you encountered?
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can you make one that fits the 1322
The designer has replied
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I dont have a 1322 to test fitment unfortunately. However, if you have some basic skills on tinker cad, its not too difficult to replace the 1377 related mag and holder with a .22 sized one. Someone had remixed the base model to .22 pellets so much of the work is already done. But you would need to adjust the placement of the mag since I dont have one to test on. Here is the link to the remixed .22 one of the base design. https://www.thingiverse.com/thing:2438489
(Edited)
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0.2mm layer, 6 walls, 25% infill
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