Short AR Stock for MDT LSS Chassis

[dubious]

I'm looking for help putting together an MDT LSS chassis for my 6.5 CM rifle (18" barrel). I'm looking to add their folding adapter for portability (~28" OAL ) but if I then add their carbine butt stock I would end up with a 15-16" LOP.

Any suggestions on what I would need to get the LOP down to around 13.5"?

As always thanks for your help CGNers!

 

[5.45]

Mine is 16.5", LSS Gen 2, folding stock adapter, and... milspec MFT Minimalist buttstock cannibalized from another unit that shall not be named.
Minimalist may be not the best choice, but it is adjustable, and the second test fire yielded sub-MOA groups with handloads. It doesn't like factory ammo for some reason. I will likely upgrade to one of Magpul carbine models, maybe UBR when the time comes