I almost sold this gun twice in the same week. I was set to sell it, then another buyer gave me a better offer, then he flaked.... THEN!... I recently bought some accessories for a M4 project that I wondered what would look like on the sig... and I fell in love all over again...
ics sig 551 ... mbus, angled foregrip, flashlight, silencer, cheek pouch. The rail on the front end was taken off the top of one of those m3000 shotguns and screwed into the top handguard with black screws...