Most Popular Rear Sight for All Platforms Builds in 2026
The top 13 most-used rear sight in 2026, ranked by how often they appear in builds tracked on AR15.Build. Updated nightly.
- 1
Magpul MBUS 3 Rear Flip-Up Sight AR-15 AR-10 M4 M16 Black Polymer
3 builds$43.81 - 2
Magpul MBUS 3 Flip-Up Sight Set for AR-15 Front & Rear
2 builds$67.52 - 3
Magpul MBUS Gen 2 Rear Flip-Up Sight AR-15/M16 Black Polymer
1 build$42.35 - 4
Aim Sports MT201 AR-15 Rear Flip-Up Low-Profile Sight Aircraft-Grade Aluminum
1 build$27.98 - 5
KRISS USA DA-RSBL00 Sight Picatinny Black Folding Rear Steel
1 build$63.28 - 6
Magpul MBUS 3 Rear Flip-Up Sight MAG1167-ODG OD Green (AR-15/AR-10)
1 build$38.26 - 7
Magpul MBUS 3 Rear Sight, Black
1 build$56.95 - 8
A1 Rear Sight Aperture
1 build$6.99 - 9
KNIGHT'S ARMAMENT - AR-15 TACTICAL REAR SIGHT 600 METER
1 build$224.99 - 10
Griffin Armament M2 Folding Rear Sight GAM2R Melonite 17-4 Stainless
1 build$61.01 - 11
Troy BattleSight Rear Folding - Black SSIG-FBS-R0BT-00
1 build$150.99 - 12
Magpul MBUS Gen 3 Folding Rear Sight, FDE - MAG1167-FDE
1 build$43.81 - 13
Magpul MBUS Pro AR-15 Iron Sight Rear Flip Up - MAG276
1 build$109.99