Master at Arms [ddi] feat work for Shields?
Benefit: You gain a +1 feat bonus to the attack rolls of weapon attacks. The bonus increases to +2 at 11th level and +3 at 21st level. Also, you can use a minor action to sheathe a weapon and then draw a weapon.
I tend to think No, as the Compendium entry about
Weapons says ...
Weapon Many martial powers, as well as several divine powers, can be used only if you’re wielding a weapon. (You can use an unarmed attack as your weapon.) A weapon’s reach or range determines the reach or range of a power it’s used with.
Shields don't have a
Reach, and it takes a
Standard Action to stow or equip, rather than the
Minor Action for a Weapon