Reach Weapons, Worn Weapons, and Attacks of Opportunity

[Martiln]

If I am wielding a Reach Weapon in 2 hands and also wearing a weapon(such as Armor Spikes, a Cestus, Spiked Gauntlets etc...) am I able to make an Attack of Opportunity with either weapon?

For example, if a foe is 15 feet away, and moves into 1 of my adjacent squares, he provokes an AoO because he moves through my Reach Weapon's threatened area. He then uses an action that would normally provoke an AoO while adjacent to me(sheathe a weapon, cast a spell, shoot a bow etc...), am I able to hit him with an AoO with my worn weapon(a Cestus)?

I would assume the answer is yes, and here's why:
1. after my turn ends, I am no longer two-weapon fighting
2. taking a hand off of a 2 handed weapon is a free action, and it's also a free action to re-grip a 2 handed weapon
3. using an off-hand seems to only matter when two-weapon fighting, and since I am doing neither, see 1

Thoughts and FAQs appreciated.

[Malachi Silverclaw]

You're fine with 1. and 3., but 2. is a problem.

You can only take free actions during your turn (apart from speaking and Snap Shot) so unless you are taking an AoO during your own turn you can't remove that hand because you can't take that free action outside your own turn.

So weapons which aren't worn by an arm would still work (e.g. armour spikes), while weapons worn on an arm/hand would not (e.g. spiked gauntlets).

[Martiln]

By RAW, I can agree with that, but GMing in my group, I allow it. It makes sense to be able to take your hand of/on a weapon even when it's not your turn if you're able to reach into a quiver and pull out an arrow, which seems like it would require more effort than shifting your grip on a polearm, spear and so on to punch someone when they're in your face.

[Malachi Silverclaw]

Martiln wrote:

By RAW, I can agree with that, but GMing in my group, I allow it. It makes sense to be able to take your hand of/on a weapon even when it's not your turn if you're able to reach into a quiver and pull out an arrow, which seems like it would require more effort than shifting your grip on a polearm, spear and so on to punch someone when they're in your face.

I agree completely!

Until the recent FAQ which defined shifting grip as a free action (it's not defined in the CRB) I argued that it shouldn't be an action at all; it should be part of the action used to attack, just like knocking an arrow.

This would mean that you can shift grip outside your own turn and it wouldn't be any kind of action to do so.