Chained Reach

*Aura moderate transmutation; CL 7th; Weight 4 lbs.
*Slot arm; Price 16,000 GP
At first glance, this appears to be a particularly heavy magical gauntlet and vambrace. However, examining it closer reveals it to be solid inside, leaving no way of putting it on. In actuality, the chained reach is a magical prosthesis, replacing any arm missing from at least the elbow up. When installed, the reach replaces the missing arm up to the shoulder, appearing to be an armored version of the natural limb. The chained reach adjusts itself to the proper handedness for the missing limb, and offers the full range of motion, strength, and dexterity the missing limb would, as well as functioning as a +1 gauntlet. 
As a standard action that provokes attacks of opportunity, the bearer may launch the hand from the wrist up to 30 ft. away, allowing them to make an attack with the gauntlet; grab an unattended item; or attempt a dirty trick, drag, grapple, reposition, steal, or trip combat maneuver. The hand is connected to the wrist by a 30-ft. chain, which is typically stored in a tiny extra-dimensional space in the wrist. The chain can then be retracted as a free action. This allows the bearer to pull a stolen or unattended item to themselves; to pull themselves to a fixed item, such as a tree branch or steel beam; or to pull themselves to a creature they have successfully grappled. This movement does provoke an attack of opportunity, but not from any creature who already attacked the bearer for launching the hand. Upon a successful reposition attempt, or a successful attempt to maintain a grapple made with the reach, the bearer may pull the target towards themselves without needing to move, but only towards themselves, and only as far as the results of the check would normally move them. Attacks and maneuvers made with a chained reach are considered to be made in melee for the purposes of effects that alter attacks and maneuvers.
Finally, a chained reach's functionality as a gauntlet can be enhanced, in a process identical to improving an ordinary magic weapon. Every increase to its enhancement bonus past +1 (but not special abilities) adds 5 ft. to the maximum reach of the chain.
===Construction Requirements===
*Feats Craft Wondrous Item; Spells certain grip, rope trick; Cost 8,000 GP
===Installation===
A chained reach can be installed into a creature's arm slot in a magical surgery taking 1 hour. This must be performed by a character with a caster level of at least 5th, and requires a DC 18 Heal check on their part. Whether or not the surgery is successful, the subject takes 2 Constitution damage.