I have been trying to collect Colt factory accessory sets for some time. I picked this up on Gun Broker 18 OCT 2020 for the the price of $405.00 (price is for historic reference only…not for sale).

This Colt stock conversion set is still sealed and consists of the following:

1. Four position receiver extension
2. Receiver Extension (Castle) nut
3. Receiver end plate
4. Carbine buffer spring
5. ‘H’ buffer
6. ‘N’ type stock assembly

The last complete factory stock set that I have seen sell sold for $375 on 6 OCT 2019. The plastic on that set was much clearer.