I am looking for help identifying the manufacturer of a stock.  A1 length, black  fairly smooth finish, trap door, and on  the right side right before it meets the lower there is a large ~1/2" letter "C" with a ~1/4" "S" inside.  They are raised and very well defined.  Is this a US made Colt stock?  It is on a 9 million range M16A1, just wanting to know if it is correct for the gun.  

Its a Colt-made A1 stock made out of A2 spec plastic, which is more durable.

Wanna sell it?  Huh,huh? [:D]

These were standard on the Colt Sporter Lightweights for a while.

Lynn

My first A2 Sporter Lightweight (1991) came with that stock.  It had a trapdoor A2 buttplate, so I always thought it was an A2.   Until over 10 years later when I took it out my parts closet and tried to mount it on a tube using the A1 spacer... [brick]