Most Popular Rear Sight for All Platforms Builds in 2026
The top 12 most-used rear sight in 2026, ranked by how often they appear in builds tracked on AR15.Build. Updated nightly.
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Magpul MBUS 3 Rear Flip-Up Sight AR-15 AR-10 M4 M16 Black Polymer
3 builds$43.81 - 2
Magpul MBUS Gen 2 Rear Flip-Up Sight AR-15/M16 Black Polymer
1 build$42.35 - 3
Aim Sports MT201 AR-15 Rear Flip-Up Low-Profile Sight Aircraft-Grade Aluminum
1 build$27.98 - 4
KRISS USA DA-RSBL00 Sight Picatinny Black Folding Rear Steel
1 build$60.86 - 5
Magpul MBUS 3 Rear Flip-Up Sight MAG1167-ODG OD Green (AR-15/AR-10)
1 build$38.26 - 6
A1 Rear Sight Aperture
1 build$6.99 - 7
KNIGHT'S ARMAMENT - AR-15 TACTICAL REAR SIGHT 600 METER
1 build$224.99 - 8
Griffin Armament M2 Folding Rear Sight GAM2R Melonite 17-4 Stainless
1 build$58.21 - 9
Troy Universal BattleSight Rear Folding Tritum Black - SSIG-FBS-RTBT-00
1 build$171.99 - 10
Troy BattleSight Rear Folding - Black SSIG-FBS-R0BT-00
1 build$137.99 - 11
Magpul MBUS Gen 3 Folding Rear Sight, FDE - MAG1167-FDE
1 build$43.81 - 12
Magpul MBUS Pro AR-15 Iron Sight Rear Flip Up - MAG276
1 build$109.99