Trending Rear Sights
The most popular AR-15 rear sights this week, ranked by builder interest.
Updated · ranked by real data
Rear Sights: most added in October 2026
The parts builders added most in October 2026, ranked from every build on GunPartPicker.
- 1.Magpul AR-15 Flip-Up MBUS PRO Magpul Back-Up Rear Sight BlackMagpul · Rear Sight
- 2.Magpul MBUS Gen 3 Folding Rear Sight - BlackMagpul · Rear Sight
- 3.Magpul AR-15 Flip-Up MBUS Gen 2 Tactical Rear Sight BlackMagpul · Rear Sight
- 4.NCSTAR Vism PRO Series Flip-Up Rear SightNcStar · Rear Sight
- 5.Mission First Tactical AR-15 Rear Sight Flip Up Polymer BlackMission First Tactical · Rear Sight
- 6.Magpul MBUS PRO Rear Sight - BlackMagpul · Rear Sight
- 7.Ultradyne USA C4 Offset Folding Rear SightUltradyne · Rear Sight
- 8.Magpul MBUS 3 Rear Sight - Stealth GrayMagpul · Rear Sight
- 9.Troy Tritium HK Top Mounted Deployable Front and Rear Sight BlackTroy Industries · Rear Sight
- 10.Knights Armament AR-15 Flip-Up Adj Tactical Micro Rear Sight 600 Meter BlackKnights Armament · Rear Sight
Updated · counts come from real builds on GunPartPicker
Most Popular AR-15 Rear Sights This Week
These rankings update every 30 minutes based on what GunPartPicker visitors are actually clicking through to buy — not just browsing. Compare prices and stock status across all our partner merchants in one place, and use the Sort menu to switch between Today's data and the full week or to reorder by price.
Rear Sight
Magpul Ar-15 Flip-Up Mbus Gen 2 Tactical Rear Sight Black
$36.99
Rear Sight
Ultradyne C4 Folding Front and Rear Sight Combo - UD10480
$230.99
Rear Sight
NcSTAR Vism Pro Series Flip-Up Rear Sight
$26.09
Rear Sight
Mission First Tactical, Llc Ar-15 Rear Sight Flip Up Polymer Black
$44.99
Rear Sight
UTG ACCU-SYNC Spring-loaded AR-15 Flip-up Rear Sight, Black
$34.97
Rear Sight
Magpul MBUS Gen 3 Folding Rear Sight - Black
$56.95
Rear Sight
Midwest Industries, Inc. Ar-15 Flip-Up Adjustable Mctar-Splp Rear Sight Black
$131.95
Rear Sight
Magpul Mbus Pro Rear Sight - Black
$109.95
Rear Sight
Ultradyne Usa C4 Offset Folding Rear Sight
$258.99
Rear Sight
USED Troy Top Mounted Deployable Rear Sight Black SSIG-FRS-R0BT-00
Rear Sight
Magpul Ar-15 Flip-Up Mbus Pro Magpul Back-Up Rear Sight Black
$79.99
Rear Sight
Knights Armament Ar-15 Flip-Up Adj Tactical Micro Rear Sight 600 Meter Blk
$189.99
Rear Sight
Knights Armament Ar-15 Flip-Up Adj Tactical Rear Sight 600 Meter Black
$201.99
Rear Sight
Magpul Ar-15 Adjustable Mbus Pro Offset Rear Sight Black
$82.99
Rear Sight
Troy Industries Rear Folding BattleSight With Di-Optic Apertures - Tritium - Black
$163.99
Rear Sight
Luth-Ar Llc Ar-15 Adjustable Rear Sight Assembly Black
$76.99
Rear Sight
Samson Manufacturing Corp Ar-15 Fixed Rear Sight Black
$60.28
Rear Sight
Spike's Tactical Rear Folding Micro Sight, Gen Ii - Black
$112.50
Rear Sight
Magpul Mbus 3 Rear Sight - Stealth Gray
$59.95
Rear Sight
Wilson Combat Ar-15 Flip-Up Bus Rear Sight Rail-Mounted
Rear Sight
Geissele Automatics Llc Buis Folding Rear Sight Ddc
$100.99
Rear Sight
A.r.m.s.,inc Ar-15 Flip-Up Adjustable 40l Low Profile Rear Sight Black
$155.00
Rear Sight
Leapers Utg Accu-Sync Spring-Loaded Ar15 Flip-Up Rear Sight - Black
Rear Sight
Troy Industries Fixed Rear Battlesight - Black
$68.73