Changed from Alpha:

Moved armor to an augment.

Absorb Weapon
Discipline: Psychometabolism; Level: Cryptic 1, psychic warrior 1
Display: Olfactory, Visual
Manifesting Time: 1 standard action
Range: Touch
Target: One weapon weighing up to 15 lbs.
Duration: Until discharged; up to 24 hours
Saving Throw: None (object); Power Resistance: Yes (object)
Power Points: 1

You can absorb one weapon of up to 15 lbs into your body and a small tattoo that resembles the item absorbed appears on the skin of your arm. The absorbed item is undetectable by normal means, although the effect is detectable via detect psionics. The item can be discharged as a standard action and the weapon is automatically equipped. You must be capable of holding the weapon or it falls to your feet (such as if you had no hands free). If the effect ends without being discharged, the item falls to your feet.
The weight of the item still counts toward your encumbrance even when absorbed.
Augment: This power can be augmented in one or more of the following ways.
1. For every additional power point spent the weight limit of the item to be absorbed increases by 5 lbs.
2. If you spend two additional power points, you can absorb a shield or armor instead of a weapon. You do not suffer any applicable armor check penalty of the shield or armor absorbed and when discharged, you automatically equip the shield or armor as long as you are capable of equipping the item.
3. If you spend two additional power points, you can store one additional item, although all stored items are discharged at the same time and are added together when determining the total weight.

Very nice. Thanks for including the tattoo : D

Question, would it be feasible for a psionics heavy setting (or place in particular) to make "body checks" before letting you enter a building in search for such kind of tattos? What I mean is if knowledge (psionics) allow you to know the existence of this power beforehand.

I'd imagine such societies would want to check for crafted psionic tattoos, also. Or magic rings. Or gloves of storing. Detect psionics would be in use for such things.

Although, I suppose if a society is strongly anti-psionic and anti-magic, they'd use such physical means to search in high-security areas.

I would assume detect psionics/detect magic with a proper Knowledge (Psioncs) DC would reveal the presence of the power. Then you need to Bluff the guards into believing you've just prepared your armor to spring out in case of emergencies...