John Wilkes Precision Aperture Sight
The ‘Precision’ is a 80’s British target rifle sight, originally made by John Wilkes, but later became the SWENSON PRECISION, it went through a few Mk’s. John was a Bisley target shooter and engineer/sight maker. These are fine quality hand-made sights, usually 1/4 MOA adjustment. This sight is in generally good condition and in full working order.