Reflex Red
Black Ops Red Dot vs Reflex Side by Side
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Mico Tactical Auto Brightness Red Dot Reflex Sight Scope S030 |  |
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US $57.95 | 4h 5m |
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Burris 1 Signature Standard Rings Gloss Medium 420500 | |
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US $48.95 | 12h 7m |
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Burris 1 Signature Standard Rings Matte Medium 420501 | |
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US $42.95 | 12h 14m |
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Burris 1 Signature Zee Weaver Style Rings Gloss Medium 420520 | |
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US $47.95 | 12h 16m |
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Burris 1 Signature Zee Weaver Style Rings Matte High 420531 | |
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US $47.95 | 12h 27m |
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Burris 1 Signature Zee Weaver Style Rings Matte Medium 420521 | |
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US $47.95 | 12h 30m |
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New NightForce 35 15x50mm NXS Tactical Riflescope ZeroStop 250 MOA NP R1 | |
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US $1,798.00 | 12h 45m |
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ATN NVM14 3P Night Vision Monocular Multi Purpose System Gen 3P NVMPAN143P | |
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US $3,499.00 | 13h 17m |
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Burris 30mm Signature Standard Rings Matte High 420581 | |
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US $64.95 | 13h 24m |
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Leupold VX 2 Riflescope 4 12x50mm Matte Duplex | |
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US $479.99 | 13h 38m |
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Leupold VX 2 Riflescope 6 18x40mm Adjustable Objective Target Matte Fine Duplex | |
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US $549.99 | 13h 50m |
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Leupold VX 2 Riflescope 6 18x40mm Adjustable Objective Target Dot Matte | |
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US $599.99 | 13h 50m |
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New Yukon 6 100x100 Spotting Scope Tripod | |
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US $445.00 | 16h 25m |
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Burris 4 12x42 Eliminator Laser Rifle Scope 200112 | |
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US $849.95 | 16h 53m |
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HORUS VISION ASLI Angle Slope Level Indicator w 30mm Ring | |
1 Bid | US $60.00 | 17h 5m |
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MEADE20 60X60 Spott Scope WATERPROOF FULLY COATED OPTICS RUBBER SHIELDED | |
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US $79.00 | 17h 57m |
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Anti Cant Device Level For 34mm Scope Tube Black | |
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US $25.99 | 22h 9m |
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J UNERTL S N 81436 20 power 2 Rifle Scope | |
14 Bids | US $718.00 | 22h 17m |
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KM NEW BSA STS 8 32X44 RIFLESCOPE STS832X44 | |
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US $216.13 | 1d 6h 3m |
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Leupold 2 7x33 VX II RifleScope LR Duplex Reticle 61270 | |
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US $298.95 | 1d 9h 57m |
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Leupold 1 4x20 VX II Rifle Scope Duplex Reticle 56700 | |
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US $296.93 | 1d 9h 57m |
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Leupold 45 14x50 VX 3 Rifle Scope BooneCrockett 66310 | |
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US $687.15 | 1d 9h 58m |
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Weaver T Series 36x40 Riflescope Matte Blk | |
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US $440.99 | 1d 12h 45m |
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Leupold VX 2 6 18x40mm Adj Obj Target Riflescope Matte Black LRV Duplex | |
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US $529.99 | 1d 12h 45m |
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Leupold VX 2 6 18x40mm Adj Obj Target Riflescope Matte Black Target Dot 110817 | |
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US $599.99 | 1d 12h 48m |
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Weaver 24x40mm T Series Riflescope | |
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US $419.99 | 1d 12h 48m |
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Leupold VX 3 45 14x40mm Rifle Scope NIB LEU66230 | |
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US $529.99 | 1d 13h 37m |
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Zeiss Conquest 65 20x50 AO Zplex Hunting Turrets Demo 5214519920 | |
1 Bid | US $829.00 | 1d 15h 16m |
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Zeiss Conquest 3 9x40 Zplex Hunting Turrets Matte Black Demo 5214609920 | |
0 Bid | US $369.00 | 1d 15h 17m |
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Leupild VX II 6 18X40 AO TARGET DOT RETICLE MATTE RIFLE SCOPE 57020 | |
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US $499.99 | 1d 15h 32m |
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Swarovski Z6 2 12x50 Rifle Scope TDS Plex Reticle New No Reserve | |
20 Bids | US $1,027.00 | 1d 15h 58m |
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Zeiss Victory Diavari 4 16x50 Reticle 60 2IP Hunting ASV 5217799960 Demo | |
0 Bid | US $2,000.00 | 1d 16h 12m |
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Zeiss Victory Diavari 6 24x56 T FL Illuminated Rapid Z 1000 Shooting ASV Demo 5 | |
0 Bid | US $2,300.00 | 1d 16h 12m |
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Zeiss Victory Diavari 6 24x56 T FL Illuminated Rapid Z Shooting ASV Demo | |
0 Bid | US $2,300.00 | 1d 16h 12m |
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Zeiss Victory Diavari 6 24x56 T FL Rapid Z Varmint Shooting ASV Demo 521774997 | |
0 Bid | US $2,000.00 | 1d 16h 12m |
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Zeiss Victory Diavari 6 24x56 T FL Rapid Z 1000 Shooting ASV Demo 5217749973 | |
0 Bid | US $2,000.00 | 1d 16h 12m |
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Zeiss Victory Diavari 6 24x56 T FL Reticle 43 Shooting ASV 5217749943 | |
0 Bid | US $2,000.00 | 1d 16h 12m |
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Zeiss Victory Diavari 6 24x72 T FL Illuminated Reticle 43 Shooting ASV Demo | |
0 Bid | US $2,900.00 | 1d 16h 12m |
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Zeiss Victory Varipoint 15 6x42 T Reticle 54 Rifle Scope 5217179954 | |
0 Bid | US $1,300.00 | 1d 16h 12m |
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Zeiss Victory Varipoint 25 10x50 Reticle 00 Rail Mount Scope 5217369900 | |
0 Bid | US $1,300.00 | 1d 16h 12m |
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Zeiss Victory Varipoint 3 12x56 T Reticle 60 Rifle Scope 5217479960 | |
0 Bid | US $1,800.00 | 1d 16h 12m |
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Leupold VX II 2 7X33 Matte Finish LR Duplex 61270 | |
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US $299.00 | 1d 16h 33m |
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NIKON MONARCH 5 20X44SF NIKOPLEX RIFLESCOPE MATTE 8424 | |
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US $436.49 | 1d 16h 55m |
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NIKON PROSTAFF 3 9X50 BDC MATTE RIFLESCOPE 6727 | |
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US $194.49 | 1d 17h 20m |
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NEW Barska Electro Sight Gun Riflescope Rifle Tactical Scope 1X30 Fast Ship NEW | |
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US $209.95 | 1d 20h 43m |
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Bushnell Sportview 20 60x60mm Spotting Scope 782061 | |
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US $116.89 | 2d 6h 16m |
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Trijicon Tenebraex killFLASH 3x30 ACOG | |
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US $176.84 | 2d 9h 41m |
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Nikon8337 25 75x82mm Angled Body ED w Zoom Eyepiece Full Warranty plus 25 Yr New | |
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US $1,100.00 | 2d 10h 42m |
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Barska 20 60x60 WP Blackhawk Angled Spotting Scope with Tripod Soft CC Pre | |
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US $134.99 | 2d 11h 5m |
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New AccuScope Scope Charts ONLY 1 4 MOA 1 2 MOA | |
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US $14.95 | 2d 12h 49m |
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Barska Tacoma 20 60x70 Straight Waterproof Spotting Scope w Tripod and Case | |
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US $194.94 | 2d 13h 1m |
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Barska Nature Scape Waterproof 15 45x65 ED Glass Straight Spotting Scope AD11108 | |
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US $299.94 | 2d 13h 9m |
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LEUPOLD 115237 VX3 45 14X50MM CDS MATTE DUPLEX | |
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US $599.99 | 2d 14h |
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RARERedfield 3 9xTV view ACCU RANGE ACCU TRAK BDCrifle scopeRangefinder | |
0 Bid | US $275.00 | 2d 14h 12m |
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Meopta Meostar 1 4x22 RD Kdot Scope | |
US $949.99 | 2d 14h 16m |
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NEW LEUPOLD 61280 VX II 3 9x50mm DUPLEX MATTE VX2 VX 2 | |
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US $409.99 | 2d 17h 56m |
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Bushnell Banner 22 Gamo Sporter 4X32 Hunting Rifle Sight Optical Scope s | |
2 Bids | US $11.50 | 2d 22h 5m |
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KAHLES PHOTONIC 6X42 IDF RIFLE SCOPE WITH ALL THE ACCESORIES | |
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US $720.00 | 3d 4h |
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Leupold SX 1 Ventana 15 45x60 Angled Spotting Scope Kit | |
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US $319.99 | 3d 12h 9m |
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Leupold VX 2 2 7x33mm Rifle Scope Matte Black LR Duplex Reticle 110795 | |
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US $329.99 | 3d 12h 17m |
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ATN NVM14 3P Night Vision Monocular | |
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US $3,499.00 | 3d 13h 46m |
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HI LUX SHARPSHOOTER SCOPE S 35 10X50 ILLUMINATED RETICLE | |
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US $72.95 | 3d 15h 32m |
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Leupold VX L 35 10x56mm Rifle Scope Minty | |
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US $649.99 | 3d 16h 18m |
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Leupold VX 3 LR Scope 45 14x 40mm CDS Side Focus Duplex Reticle 115240 | |
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US $729.99 | 3d 16h 31m |
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Leica ER 25 10x42mm Riflescope 50012 Leica Ballistic Reticle | |
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US $1,199.99 | 3d 17h 31m |
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Leupold VX 3 45 14x40mm Adj Obj Rifle Scope Matte Black Fine Duplex Reticle | |
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US $599.99 | 3d 17h 46m |
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Leupold VX 3 45 14x40mm Adj Obj Rifle Scope Matte Black Boone Crockett | |
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US $679.99 | 3d 17h 55m |
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Nikon 25 75x82mm Angled Body ED w Zoom Eyepiece | |
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US $1,899.95 | 3d 18h 8m |
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Leupold Mark 4 Scope Cover MR T 57866 Riflescope Accessories | |
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US $24.99 | 3d 18h 12m |
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Leupold VX 3 45 14x50mm Rifle Scope Matte Black Heavy Duplex Reticle 66300 | |
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US $659.99 | 3d 18h 12m |
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Leupold VX 3 45 14x50mm Rifle Scope Silver Finish Duplex Reticle 66315 | |
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US $659.99 | 3d 18h 42m |
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Leupold VX 3 45 14x50mm Rifle Scope Matte Black Varmint Hunters Reticle 66305 | |
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US $739.99 | 3d 18h 42m |
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Leupold M8 2x20mm Pistol Scope | |
3 Bids | US $79.00 | 3d 18h 45m |
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LEUPOLD VX 2 3 9X40 RIFLESCOPE DUPLEX SILVER 56850 NEW vx ii | |
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US $279.99 | 3d 20h 55m |
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Barska Optics Benchmark 25 125x88 WP Handheld Table Top Tripod Bird watching | |
4 Bids | US $75.00 | 3d 23h 29m |
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Leica ER 35 14x42 Riflescope with the Leica 1 Reticle Part 51013 | |
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US $1,299.99 | 4d 13h 46m |
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Trijicon Accupoint 125 4 Green Ger Crosshair TR21 3G | |
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US $765.00 | 4d 15h 53m |
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Trijicon Tenebraex killFLASH 3x30 ACOG TA87 | |
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US $144.50 | 4d 15h 54m |
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Victory Diavari 4 16x50 T FL 5217779920 | |
US $2,499.99 | 4d 16h 22m |
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Victory Diavari 6 24x56 T FL 5217739973 | |
US $2,999.99 | 4d 16h 23m |
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Victory Diavari 6 24x56 T FL 5217749973 | |
US $2,799.99 | 4d 16h 23m |
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Victory Diavari 6 24x72 T FL 5217959943 | |
US $3,599.99 | 4d 16h 23m |
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Victory Diavari 6 24x72 T FL 5217959960 | |
US $3,599.99 | 4d 16h 23m |
![CounterSniper Dark Ops] 1 12x30 ALUMINUM TACTICAL SCOPE DOH385] w Rings](http://www.racingbullz.com/images/e/180851301191_0.jpg) |
CounterSniper Dark Ops] 1 12x30 ALUMINUM TACTICAL SCOPE DOH385] w Rings | |
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US $687.50 | 4d 16h 26m |
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Leupold Mark 4 ARD AntiReflect Device 40mm | |
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US $128.54 | 4d 16h 35m |
How Reflex Sights Work
The optical collimator makes the reflex sight possible. Collimators align rays of light from a source in parallel. Refractive and reflective collimators are employed. The collimator takes the image of the reticle illuminated by a radioactive or fiber-optic light source or an LED and projects it to infinity. This image is directed onto a dichroic mirror or beam splitter which uses a special reflective coating so as to reflect only the precise colour of the reticle whilst allowing all other colours to pass through. This enables the shooter to see the reticle in the distance in an otherwise perfect image from which only the exact wavelength of the reticle has been removed.
Holographic reflex sights use a laser hologram to project the image of the reticle into the target plane. A great benefit of this is that the entire aiming pattern image is effectively optically centred - not just its middle. It also makes the sight less sensitive to eye position relative to the sight, allowing for more variety in shooting position. It also means partial obscuration of the aiming window will not prevent the firer seeing the aiming pattern in its entirety. The main drawback of the holographic sight is its laser diode's greater power consumption than an LED - battery lives being measured in hundreds rather than tens of thousands of hours.
The position of the collimator dictates the configuration of the sight. If it is mounted underneath you can have a unit that is less bulky, with the sighting screen taking the form of a mini head up display. This configuration can have the disadvantage of putting the sight line way above the bore - this suits AR15 rifles or others with a straight-through stock configuration, but is disadvantageous with other configurations. It can also result in a less robust sight as the protruding display can be vulnerable. Side mounted collimators enable a tube to be used to contain the workings of the sight. Tubes are inherently immensely strong and result in immensely robust sights with adjusters that can be switched from right to left hand operation by simply rotating the sight in its mount.
Reflex or red dot sights are usually non magnifying - this enables them to be used with both eyes open for very fast target acquisition and engagement. This is best accomplished with a red dot or circle reticle, the dot size being a trade-off between fast acquisition (larger dot better) and precision (smaller dot better). However, magnifying red dot sights exist which take advantage of reflex operation to combine a large illuminated aiming point for fast target engagement with a traditional ballistically calibrated ladder reticle for long range precision. A bright illuminated aiming mark is used for close ranged shooting, with a traditional reticle for longer ranged engagements. This philosophy is exemplified by the Trijicon Acog, adopted as standard across the US armed forces. However 1x magnification or 'unitary' reflex sights can often be fitted with detachable or flip to side magnifiers to provide a very versatile combination. The ubiquitous ACOG can attain similar versatility with the mounting of peep battlesights and/or a small rear mounted red dot sight on their housings.
It is almost universal for reflex sights to use internal adjustment. The sight is mounted rigidly to the weapon and the optics move internally to move the point of impact. The adjustments are calibrated and almost always take the form of audible or tactile clicks. The calibrations vary from manufacturer to manufacturer and model to model. The fly fishing tackle (the latest US Army M68) for example employs clicks that are 16mm at 100 meters or 1/2" at 80 yards whilst the USMC's AN/PVQ-31B / TA31RCO has clicks that move the point of impact 0.33" at 100 yards.
Amost all red dots sights feature variable brightness levels for the reticle. This is particularly important in those sights intended for use with Night Vision. Adjustment is accomplished automatically in some models, either electronically or by the amount of light the fiber-optic light gatherer can take in from the environment. The latter system can cause problems when shooting into a brightly lit area from a dark one. A polarising filter can be used on some models to reduce the brightness of the image - rotating two polarised lenses can graduate the image from complete brightness to complete black-out. As the dichroic mirror or beam splitter is itself sometimes polarised, fitting one such filter can have a similar effect. In the past this caused problems with protective eyewear which was also polarised, but the leading manufacturers now use polarities chosen so as not to obscure the target when used with polarised glasses.
It has become commonplace for shooters to 'co-witness' their iron sights with their non magnifying red dot sight. It is not necessary to align the red dot to sit on top of the foresight or anywhere else - it only matters that both systems are zeroed on the target. A popular method is to have the iron sights in the bottom 1:3 of the sight picture and manufacturers like Eotech are starting to make sights with optional risers to permit this; for example their 557.AR223.
Copyright Chris Pieterman 2010
