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AR-15 receiver rail height back-up folding front sight. For a Durable and Compact Flip-Up Front Sight, the NcSTAR MARFLF_2 is the AR-15 Back-Up Front Sight that should equip your AR-15 rifle. This Front Sight Height is for Handguard Rails, Monolithic Receivers, and Gas Blocks that are at the SAME Level as the AR-15 Receiver Rails (Flat Top).

Features:

- Precision made Flip-Up A2 Front Sight Post folds down out of view of your optics when not in use
- The A2 front sight post is fully adjustable for elevation
- Strong and positive Detent System, the Front Sight Post will stay in any Position under heavy Activity and Recoil.
- Manufactured from steel and aluminum the MARFLF_2 will not melt on your gas block under sustained shooting, unlike other manufacturers plastic back-up front sights
- The Compact Flip-Up Front Sight mounts onto weaver style and Picatinny rails with a single Allen head bolt for a secure attachment to your receiver
- The Allen Head Bolt is more snag resistant, more compact, and lighter than a Thumb Nut
- Compatible with these NcSTAR Rear Iron Sights: MARFLR, MARDRS, MARDCH
- Construction: Steel and Hard Anodized Aluminum
- Color Black