NcSTAR Front Flip AR-15 Back-Up Sight For Receiver Height Gas Block

For a Durable and Compact Flip-Up Front Sight, the NcStar AR-15 Back-Up Folding Front Sight - Receiver Rail Height is the AR-15 Back-Up Front Sight that should equip your AR-15 rifle. This Folding Gun Sight from NcStar is for Handguard Rails, Monolithic Receivers, and Gas Blocks that are at the SAME Level as the AR-15 Receiver Rails (Flat Top). The NcStar AR-15 RECEIVER RAIL HEIGHT BACK-UP FOLDING FRONT SIGHT is manufactured from steel and aluminum and will not melt on your gas block under sustained shooting, unlike other manufacturers plastic back-up front sights. This NcStar Gun Sight mounts onto weaver style and Picatinny rails with a single Allen head bolt for a secure attachment to your receiver. The NcStar Folding Backup Front Sight is made with a strong and positive Detent System, and will stay in any Position under heavy Activity and Recoil. Features: For Handguard Rails, Monolithic Receivers, and Gas Blocks that are at the SAME Level as the AR-15 Receiver Rails (Flat Top). 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 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. Specifications: Gun Model: AR-15 Construction: Steel and Hard Anodized Aluminum