Shibuya Sight Ultima RC PRO 520-9-B Recurve

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Recurve sight from Shibuya.

This model (520-9-A) is a classic sight for the recurve archer. There is a large vertical adjustment range of 107 mm, which is especially useful with a draw weight of less than 40 lbs (for comparison: Shibuya Ultima II RC: 97 mm, Arc Système SX200 95 mm, Decut DC-RE 100 mm, Win&Win WS700 109 mm).

This sight is equipped with a type "B" extension bar, which means that it not as stiff as type "A" (see recommended products below). The not quite so stiff model "B" is especially designed for archers with a lower draw weight, since not as high vibrations occur as with very high draw weights. Nevertheless the "A" type extension bar can also be used. Another difference besides the stiffness is the 12 gram less weight of the type "B".

Key features:

• The Ultima RC PRO is the newest member of Shibuya's Ultima family.
• The extension bar is made of carbon and most of the other parts are made of light and strong aluminium.
• Attractive, modern polygonal extension bar design for even better damping and vibration control.
• The vertical threaded rod is suspended in a damped manner to prevent vibrations and noise.
• Sight block is guided over two diagonally mounted surfaces with plastic glides, thus no play between sight carriage and vertical bar.
• Large knob for quick adjustment or removal of the sight block.
• The quick adjustment screw has a larger contact surface to the extension bar and thus ensures that the extension bar is fixed even more securely.
• Fine adjustment of the vertical axis 1/480" (0.05 mm) per click.
• Fine adjustment of the horizontal axis 1/640" (0.04 mm) per click.
• There is a metal scale on both sides of the adjustment rail. One has a standard scale, the other is blank and can be labeled by you.
• The locking screw of the lateral coarse adjustment has been replaced by a thumb screw and can thus be loosened by hand.

Technical specifications:
 

* APD: Aperture Distance = Distance between sight pin and mnounting point at the riser.