NcStar AR-15 Flip Up Front Sight (Low Profile)

NcStar AR15 Flip-Up Front Sight-Reciever Height (MARFLF/2) Features: - 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) - 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 - Aluminum and Steel Construction - Overall Height: 1.8" (Extended Up), 1.0 (Folded) - Weight: 2.1 oz.