Trending Optics
The most popular AR-15 optics this week, ranked by builder interest.
Updated · ranked by real data
Optics: most added in October 2026
The parts builders added most in October 2026, ranked from every build on GunPartPicker.
- 1.EOTECH 3x30.5mm X 21.6mm Holographic Hybrid Green Dot Sight - HHSGRNEOTech · Optic
- 2.SIG Sauer Romeo 5XDR Gen II Red Dot Dot w/ Juliet 5 Micro Magnifier - SORJ5X201Sig Sauer · Optic
- 3.EOTECH XPS2 Holographic Sight, Tan - XPS2-0TANEOTech · Optic
- 4.Vortex Defender-ST 3MOA Micro Red Dot w/ Delta Point PRO Footprint - DFST-MRD3Vortex Optics · Optic
- 5.SIG Sauer Romeo 5 Gen II Red Dot, Black - SOR5101Sig Sauer · Optic
- 6.EOTECH EXPS3-2 HWS and G43 MagnifierEOTech · Optic
- 7.EOTECH EXPS3-0 Holographic Weapon SightEOTech · Optic
- 8.Viridian Venta Green Dot Sight 1x22mm 3 MOA DotViridian · Optic
- 9.Holosun HE530G 30mm Red Dot SightHolosun · Optic
- 10.Vortex Defender-ST Micro 6 MOA Red Dot Sight, Black - DFST-MRD6Vortex Optics · Optic
Updated · counts come from real builds on GunPartPicker
Most Popular AR-15 Optics 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.
Optic
Eotech 3x30.5mm x 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
$1289.00
Optic
Holosun AEMS Pro Black Anodized 1x 2/65 MOA Illuminated Red Circle w/Center Dot Reticle Features Lower 1/3 Co-Witness Mount
$399.99
Optic
Vortex Optics StrikeFire II Bright Red Dot Sight - 4 MOA - Cantilever Mount
$169.99
Optic
EOTech XPS2 Holographic Sight, Tan - XPS2-0TAN
$579.99
Optic
Sig Sauer Romeo 5 Gen II Red Dot, Black - SOR5101
$99.99
Optic
Sig Sauer Romeo 5XDR Gen II Red Dot Dot w/ Juliet 5 Micro Magnifier - SORJ5X201
$269.99
Optic
Vortex Optics Viper Shotgun Enclosed Micro Red Dot Sight - Multi-Reticle
$297.49
Optic
EOTECH EXPS3-2 HWS and G43 Magnifier
$1165.19
Optic
Holosun HS510C Red Dot & HM3X Magnifier Combo
$484.99
Optic
Vortex Defender-ST 3MOA Micro Red Dot w/ Delta Point Pro Footprint - DFST-MRD3
$254.99
Optic
Trijicon ACOG 4x32mm Scope - Dual Illuminated Chevron - Red
$954.81
Optic
Vortex Optics StrikeFire II Red / Green Dot Sight - 4 MOA
$99.99
Optic
VISM SPD FlipDot Red-Dot Reflex Sight - 2 MOA Dot Precision Red-Dot Sight with Flip-Up Lens for Fast Aiming - VDBSOLFLIP
$105.40
Optic
Beretta 80X Red Dot Optic Plate, Shield Footprint
$19.24
Optic
Vortex Optics Spitfire AR Prism Scope 1x - DRT MOA Reticle
$149.99
Optic
Vortex Defender-ST Micro 6 MOA Red Dot Sight, Black - DFST-MRD6
$254.99
Optic
SIG Sauer ROMEO8T Red Dot Sight - Flat Dark Earth
$449.99
Optic
Trijicon ACOG 3.5x35mm Green Dual Illuminated Scope - .308 Ballistic Reticle
$1217.99
Optic
Sig Sauer ROMEO4H 1x20mm Ballisitic Circle Dot Reticle Red Dot Optic - SOR43011
$334.39
Optic
Viridian Venta Green Dot Sight 1x22mm 3 MOA Dot
$149.00
Optic
Primary Arms SLx 1-6x24mm SFP Rifle Scope Gen IV - Illuminated ACSS Nova Fiber Wire Reticle - Red Dot Bright®
$349.99
Optic
Aimpoint Duty RDS Red Dot Reflex Red Dot Sight 2 MOA Dot with 39mm Picatinny Mount and Spacer Aluminum Matte Black
$463.99
Optic
Holosun 507 Green Dot w/ Competition Reticle System - HE507COMP-GR
$399.99
Optic
EOTech VDU525FFMD4 Vudu FFP Black Hardcoat Anodized 5-25x 50mm 34mm Tube Illuminated Red MD4 MOA Reticle Features Throw Lever
$2155.00