My SMOS receiver set should be here next week and here is my build plan...

I am going to build a 16" barreled Recce type rifle.

I plan on using a rifle length buffer tube with a Lancer A1 length fixed stock.  For a handguard I am going to go with a Noveske NSR 15" or NQR 15".  Only reason I am not going with SMOS is because I already have accessorized for Pic rails and Keymod and don't feel like adding MLOK to the mixed (I have also tried an MLOK rail and prefer the keymod mounting system for various reasons).  I would love to save the cash and get an SMOS rail but Keymod works for me.

I am going to run a 16" midlength barrel.  At this point I have narrowed it down to either a Noveske Lightweight 16" SS barrel or a Larue Predator 16" middy barrel.  Leaning towards the Noveske at the moment due to the SMOS receivers being essentially Noveske receivers that are slickside.  I am then planning on running a Vortex Strike Eagle 1-6x scope.  And just out of curiosity I am going to try out one of those new b.a.d. adjustable pistol grips.

Only questions are if my rifle length buffer will play nice with a 16" middy barrel.  By my estimation, there shouldn't be any problems.