This is a teaser for the Quokka-15 bufferless AR — a successor to the Marsupial MK18, brought to you by the same development team.
https://en.wikipedia.org/wiki/Quokka
Key improvements include:
- Single guide rod
- Mil-Spec lower compatibility
- Slimmer overall profile
- Folding forward charger
- Stiffer handguard mount

The Phantom Pup assembly manual has OAL with a 16“ barrel at 26“ with the stock extended. Obviously I don’t know how long the receiver on the Quokka is but I‘d be surprised if it was that much shorter than the FM-15.
Dude I am stoked by this development, ever since the FM-15 upper prices got hiked I have been holding out for someone to make exactly this possible.
I have a feeling this might turn into my favorite printed gun since the SF5.
Oh right I forgot it’s measured with the stock extended! It should be the same lengths as the FM 15 upper