Oh right I forgot it's measured with the stock extended! It should be the same lengths as the FM 15 upper
some_kid6
joined 2 months ago
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
A bufferless AR15 upper