Had a Colt Commando sitting on the shelf feeling a little unloved & not really period correct as it has an A3 flat top, only realised the other day that it's closer to being a Mk18 Mod0, swopped a RAS rail from an M4A1 & a spare stock and Fanny's your Aunt.
I fancy doing a GarandThumb style Mk18 & this M910a (ish) grip arrived today, will order a PEQ2, Knights style suppressor, different RDS & a CQBS next week.