this post was submitted on 09 Oct 2025
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It'll need to use the Dissent back plate/stock option to hold the spring in but it looks like it fits with all the FM15 options otherwise. Here's some pics. ~~It'll be an SBR with a 16.5" bbl since the OAL is 24.5" but that's easy enough to fix.~~
edit: i forgot OAL is with stock extended
OAL is measured with the stock extended, no?
EDIT: This is super exciting though, means the bullpup I've been planning for like a year is about to get a shit ton more printable.
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.
Oh right I forgot it's measured with the stock extended! It should be the same lengths as the FM 15 upper