I don't know what i'm doing
I don't know what i'm doing
Originally posted by u/AskZealousideal8814 at 2025-06-10T15:19:02Z
Working on a polymer AK handguard prototype using an heavily modified rpk16 handguard and could use some advice. I know high temp resistant polymer is a must (300°F+ heat resistance at least), and AK74-style heat shields are non-negotiable near the barrel. But I’m unsure about other high-heat zones and contact points.
Contact Points:
- The handguard retainer and trunnion area don’t get as hot as the barrel (usually), but should they still have shielding or metal reinforcement?
- Should I go with m70 style ferrule and some more metal reinforcement (trunnion area).
- I can potentially use bent round bar near handguard retainer (I don't know if this is necassary)
- References:
- Besides surplus AK74 handguards, what aftermarket designs handle heat well? (Zenitco? TDI?)
- Any bad examples of polymer handguards melting/warping? (Trying to avoid that.)
- Material Specifics:
- Is standard nylon 12 sufficient, or do I need a fancier blends such as nylon 6/6?
- How much heat shielding is actually necessary verse overkill?
I'm also am aware the current design is missing the tension spring at the front of the handguard.
Source: https://b.thumbs.redditmedia.com/g5FpedlFsqt-T0f5YVsUWJZOGLXqp-VL8wqEFjOKYBQ.jpg
