You are viewing a Sig Sauer SIG /MCXMPX Copperhead Collapsing/Telescoping Stock.

This stock is ONLY compatible with the MCX/MPX Copperhead.

Adding this stock will make your current MCX/MPX an SBR. Please check your local laws to ensure you are complying with all of the rules and regulations for your state.

This stock has been discontinued by Sig Sauer.

New, old stock. Will have small marks, scrapes, dings, dents from stocks being stored together.

Color: TAN/FDE

The stock will come as shown, no extra parts included.

You will need to use your current 1913 interface on your MCX/MPX Receiver.

This will just slide right into your 1913 Interface.

Some of the Sig Weapons have tighter tolerances and the stock will not slide all the way in, until a break in process is achieved. I put some oil on the inside rails and the rails of the stock. Over time with use the stock will loosen up. I have added some pictures to show what this means.