Vepr 12 - ProMag - Follower Fix
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An optimized magazine follower designed specifically for a Vepr-12 to fix the reliability issues of Promag magazines.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Outdoor Sports
- Licencja
- Creative Commons — Attribution — Noncommercial — Share Alike
This design is based on the original Vepr 12 factory magazine followers, which works flawlessly.
The geometry and angles are redesigned to prevent it from binding or getting stuck against the left inner wall of the receiver and the feed ramp.
Tested and fully functional for dynamic sport shooting.
I tested it with two different Vepr-12.
If your Vepr-12 has a removed/deactivated bolt catch mechanism (some Vepr 12 tuned for IPSC), you can simple cut off the vertical tab (the ridge) on top of the follower in your Slicer.
Print Settings & Recommendations (Optimized for 0.6mm Nozzle)
Filament Used: Fiberlogy PA12-CF15. ASA work too but Nylon is highly recommended due to it's properties
Why is there a Prime Tower? When printing Nylon, layers print very quickly. This doesn't give the material enough time to cool down before the next layer, leading to overheating, melting, sagging.
To solve the problem I placed the Tower to force the print head away from the follower on every layer. This buys time for the Nylon to cool down, preventing the bolt catch tab from melting away and keeping it's spec's and geometry.
Post-Processing: Coat the internal channel and guiding surfaces with PTFE dry lubricant spray (Teflon) for ultra smooth feeding! For ASA you can do a quick Acetone vapor treatment.
Zip Tie Fix
The original Vepr mags have a rib on the back side. The ProMag does NOT.
Without the rib, the magazine wobbles in the magwell like crazy.
My solution was gluing a cable tie with epoxy.