UTG AR15 Low Profile Flip-up Front Sight for Handguard

UTG MNT755 UTG Accu-Sync Flip-Up Front Black AR-15 AR Platform Flip Up Back Up Front Sight

Leapers MNT-757, Inc. - UTG Accu-Sync Spring-loaded AR15 Flip-up Front Sight, Black MNT-757

Leapers MT-745, Inc. - UTG Accu-Sync, AR15 45 Degree Offset Flip-up Front Sight, Black MT-745

Leapers, Inc. - UTG Sight, Flip-Up Rear Sight, Low Profile, Fits Picatinny, with Dual Aiming Aperture, Black Finish MNT-955

UTG Model 4 Low Profile Flip-Up Front Sight for Handguard (MNT-755)

UTG MNT955 UTG Accu-Sync Flip-Up Rear Sight Black for AR-15

Leapers UTG ACCU-SYNC Spring-loaded AR15 Flip-up Rear Sight - Black