r/40_mm↗
Place for owners/users of 40mm launchers and other legal NFA DDs to discuss ammo, launchers, loading tips/tricks, reloading resources/components, legal minutia, and any other stuff that isn’t easily found with a quick google search.
4.1k subscribers28 posts / mo in Sep 202618 authors / mosince 2023
r/40_mm has 4.1k members (+29% over the last 12 months). It gets about 28 posts a month from 18 people. Top topics: PLA Variants and Wood Filaments, Gun Mechanics & Designs and Grenade Warfare.
When to post on r/40_mm
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How r/40_mm has grown
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Topics and brands on r/40_mm
Top topics
Share of the subreddit's posts
- PLA Variants and Wood Filaments0.2%
- Gun Mechanics & Designs0.2%
- Grenade Warfare0.2%
- RC Chassis Build0.2%
Brands people mention
Most-mentioned brands and sites, last 12 months
Posting rules for r/40_mm
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Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research