Comparing apples to apples using cost, accuracy, and features, the CHALLENGER is second to only one in the industry... that is the SURE-LOC® SUPREME!
The lightweight CHALLENGER features a dependable vertical locking mechanism that is easy to use. Simply unlock the knob about 1/4 to 1/2 turn for true micro-adjustments of .002" or 2 to 2-1/2 turns to depress the knob and make rapid elevation adjustments. Windage adjustments are also a true .002". The CHALLENGER sights are compatible with all SURE-LOC® accessories.
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Accurate and lightweight sight
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Dependable vertical locking mechanism
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Micro-adjustments in very accurate and repeatable .002" increments
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Unique, patented split-block design for easy scope and pin attachment swapping
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Precise, repeatable sight and accessory mounting