For Armalite AR-10 rifles with 16' and 20' barrels with a diameter of .750". Machined to appropriate height for use with standard AR-15 Rear Back Up Sights. Easy bolt-on design for simple installation. Super smooth ball detent for extreme durability and reliability. Detent button locks the front blade in the folded and deployed position. Features a standard M16A2 front sight post. Fully adjustable for elevation. Constructed from 4140 steel and hard coat anodized 6061 for a lifetime of service.
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