Comments by "geodkyt" (@geodkyt) on "Project Lantan: Poland Designs a Modular AK in 7x41mm" video.

  1. Likely cost was the driver. Prototyping a foam stock would be cheaper than prototyping an actual injected polymer, because you could use the lost wax process to make the mold cheaply and quickly, when you're only doing a handful. Once you've set the design pretty much in stone amd know how the stock will end up being shaped and the exact geometry of the attachment, then you go and drop the $150,000 (well, maybe $30,000 back then) to make proper molds for proper polymers.
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  2. Or, even making a lost wax cavity to hand the stock skeleton into and spray the foam around it. I did a similar thing with a hollow, aftermarket, FAL stock, with a can of crack sealant spray foam and some bird shot mixed in at intervals, to balance the rifle better. The stock ended up slightly stiffer overall, too...
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  3. Just having the barrel attach to the upper is going to increase repeatable accuracy for any scope mount (or an iron sight moved to the rear of the receiver, which would simultaneous make field accuracy easier by increasing sight radius).
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