Re: Replacing my Tac15i Stock - How?
I used to know what the proper term for each of the two rings is, but over time I've forgotten, so let's just call one the wider ring and the other the skinny ring.
1. First, fully extend your Buttstock to the open position, so it's not in your way.
2. You must loosen the wider ring first. This can easily be done by using a set of channel locks or wide pliers, but I'd recommend placing a cloth or sponge rubber material around the ring, so as not to scratch the surface of the ring.
3. Once this is off you should be able to easily unscrew the skinny inner ring and then unscrew the extension tube from the lower unit of the crossbow.
4. The synthetic stock is released from the extension tube by simply using the release lever that you use to extend and retract the Buttstock. Pull it in the opposite direction you use to open the stock while sliding the stock off the tube. If the lever is pulled open far enough, your stock will slide off the extension tube.
These steps are only good for the TAC15i, they will not work for a regular TAC15 because the true AR15's have other steps that need to be performed and the wider ring has its threads locked by the manufacture using a type of lock-tite adhesive. A special tool is made for loosening these rings.