The ProMag Flip-Up Gas Block Height Front Sight is injection molded to fit dovetailed gas blocks meeting MIL-STD 1913 Picatinny rail specifications. The sight is mounted to the gas block via a locking bar and secured with a cross slotted, knurled thumb screw. The sight is adjustable for elevation and features straight protective ears. The sight's stem folds up and towards the shooter to deploy. When in the up position the sight is locked in place via a spring loaded plunger. To fold the sight to the down position, all the shooter has to do is depress the plunger and fold the sight stem forward. No permanent modification required for installation. All hardware included. Available in aluminum or polymer.
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