I would like to change out the stock on my Colt MT6400 to a Sully stock. Do I just need a castle nut spanner wrench to take the tube off? The castle nut is staked I believe, will I need to replace the nut?

 

thanks!

 

- Daniel

If the castle nut is staked, the removal should be pretty easy with the wrench. I don't know if Colt loctites them on (if so, use a bit of heat). Since you're replacing it with a Sully stock, you won't need a castle nut (as the Sully stock does not utilize one).

If the castle nut is staked, the removal should be pretty easy with the wrench. I don't know if Colt loctites them on (if so, use a bit of heat). Since you're replacing it with a Sully stock, you won't need a castle nut (as the Sully stock does not utilize one).

 

 

Mine on my Colt Match Target wasn't loctited. It just takes a bit of force to unscrew it.