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Holosun HE503CU 1x20mm 2 MOA Dot & 65 MOA Circle Red Dot Sight

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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
EDEMO Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU, EDEMO1
Holosun Circle Micro Red Dot, 2 MOA Dot, 65 MOA Circle, Black W/ Kinetic Development SIDELOK Aimpoint Micro Mount Lower 1/3 Co-Witness, Black
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
EDEMO Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU, EDEMO1
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun 503CU Product
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
EDEMO Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU, EDEMO1
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EDEMO Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU, EDEMO1
Holosun Circle Micro Red Dot, 2 MOA Dot, 65 MOA Circle, Black W/ Kinetic Development SIDELOK Aimpoint Micro Mount Lower 1/3 Co-Witness, Black
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Holosun Circle Micro Red Dot, 2 MOA Dot, 65 MOA Circle, Black W/ Kinetic Development SIDELOK Aimpoint Micro Mount Lower 1/3 Co-Witness, Black
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU
EDEMO Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU, EDEMO1
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EDEMO Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle, Black HS503CU, EDEMO1
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU
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Holosun Circle Micro Red Dot Sight,2 MOA Dot,65 MOA Circle,Black HS503CU

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Questions & Answers
Does This fit on a UNITY FAST Micro mount ? Expert Answer

Yes, the Holosun HE503CU 2 MOA Dot & 65 MOA Circle Red Dot Sight uses the Aimpoint T1/T2 optic footprint and would be compatible with the FAST Micro Mount.

by Ethan, Gear Expert, September 21, 2022
Do I need a specific mount for this red dot? Or can I just mount it on a standard Pic rail? Expert Answer

The Holosun HE503CU comes with a low mount and lower 1/3 mount. Both of these mounts are made to fit on any standard picatinny/1913 rail, so you shouldn't have any issues mounting this red dot.

by Ethan, Gear Expert, January 6, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
very clear circle dot sight by CC, Verified Owner, August 8, 2024
I have a pretty strong astigmatism so I’ve been looking for an optic with extreme clarity and this optic definitely fits the description. Extremely happy with it multiple settings easy to exchange batteries without remounting. I highly recommend it.
1/1 found this helpful
Helpful Positive Review
Holosun 503 cu bu by Bridge, February 7, 2017
The brightness and quality stand out the most. This is a great optic for the price. Like life there are goods and bad but more good then bad. 65moa dot is crisp no glare from front or rear of the optic. Fits both left and right handed guns Ar and sho...
Read More...
15/16 found this helpful
Helpful Positive Review
Holosun HE503CU 2 MOA Dot & 65 MOA Circle Red Dot Sight by Graphic, Verified Owner, March 9, 2021
Only thing I have a problem with is the battery tray and super small screws - you almost have to be a jeweler to get screws in, could never change a battery fast in a emergency situation. Prefer the side battery style - did not realize this on the ve...
Read More...
2/3 found this helpful
Helpful Positive Review
Great optic don't hesitate! by Chomp, April 4, 2021
Was a little worried with some of the reviews, however mine has ran flawlessly. Shake awake feature and solar panel are game changers! Built well, crisp dot and has held zero perfectly! I will be buying more down the line for future rifle builds. May...
Read More...
1/2 found this helpful
Helpful Positive Review
Best red dot period by MAGA 2017, December 30, 2016
Best red dot available period, regardless of price. Destroys AIMPOINT. Aimpoint better get back to the drawing board fast. Circle dot is crisp. Holds zero. Motion detector auto off/on plus solar. Yes the 503cu DOES have auto shut off after 10 minu...
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5/5 found this helpful
Helpful Positive Review
COULDN'T FIND THE RED DOT!! BUT, CONTACTED HOLSUN, WHO SENT RETURN POSTAGE.... by BARRY, September 22, 2021
RETURNED TO ME, POSTAGE PAID, RED DOT / CIRCLE IN DOT HAD BEEN RE-ZERO'D AT THEIR FACILITY. MOUNTED ON AR PISTOL, SHOOTS LIGHTS OUT!! AMAZING WHAT A LITTLE PATIENCE, AND AN AMAZING CUSTOMER SERVICE AND TECH TEAM CAN DO FOR CUSTOMER SATISFACTION! T...
Read More...
3/3 found this helpful
Read All 51 Reviews
Color:
Black
Finish:
MAO Finish
Magnification:
1 x
Objective Lens Diameter:
20 mm
Reticle:
2 MOA
Illumination Type:
LED
Illumination Color:
Red
Eye Relief:
Unlimited
Adjustment Click Value:
0.5 MOA
Emitter Type:
Enclosed
Battery Type:
CR2032
Water Resistant Mark:
1 m
Weight:
3 oz
Additional Features:
Reduced training time and ammunition, Durable and reliable construction
Included Accessories:
Standard
Condition:
New
Magnification Type:
Fixed
Quantity:
1
Red Dot Sights-Footprint:
Not Applicable
Adjustment Range:
0.5 MOA
Attachment Type:
Quick Detach
Co-Witness:
Yes
Housing/Frame Material:
6061-T6 aluminum

Code: 28Y-RD-RCJO-HS503CU

MPN: HS503CU

UPC: 605930624540

Product No Longer Available

Product Info for Holosun HE503CU 1x20mm 2 MOA Dot & 65 MOA Circle Red Dot Sight

The Holosun HS503CU 2 MOA Red Dot Sight is a small, compact sight filled with great features and options for every shooter. Featuring a 2 MOA red dot and a 65 MOA circle reticle, these Red Dot Sights by Holosun has a unique U-shaped housing design that covers the windage and elevation turrets on two sides. The Holosun HS503CU 65 MOA Circle Dot Scope also has the option to run on Solar Power and has automatic brightness settings that preserve the battery life, boasting up to 5 years of life on one CR2032 battery! The Holosun HS503CU Parallax Free Red Dot/Circle Sight works when you need it, and is perfect for your favorite shotgun, pistol, rifle, air rifle, or crossbow!image

Features of Holosun HS503CU 65 MOA Circle Dot Scope, 28Y-RD-HS503CU:

  • 2 MOA dot & 65 MOA Circle
  • Reduced training time and ammunition
  • Unlimited field of view
  • Parallax-free with unlimited eye relief
  • Durable and reliable construction

Package Contents:

  • Holosun HS503CU Micro Red Dot Sight, 28Y-RD-HS503CU
  • Low mount and 1/3 Co-witness mount

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Red Dot Sight Magnifier

1–21 / 21
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Best Rated
Vortex Micro 3x22mm Magnifier, Matte Black, 2.9in, 9.6oz, V3XM
Vortex Micro 3x22mm Magnifier, Matte Black, 2.9in, 9.6oz, V3XM
(137)
List: $449.99 (Save 43%)
$254.49
Free 2 Day Shipping
Trijicon MRO HD 3X Red Dot Sight Magnifiers
Trijicon MRO HD 3X Red Dot Sight Magnifiers
(25)
As Low As (Save Up to 32%)
$379.99
See all 3 models
15% Bonus Bucks
Holosun HS510C Open Reflex Circle Dot Sight w/HM3X Magnifier Combo, Black, HS510C+HM3X COMBO
Holosun HS510C Open Reflex Circle Dot Sight w/HM3X Magnifier Combo, Black, HS510C+HM3X COMBO
(105)
List: $570.58 (Save 15%)
$484.99
Best Rated
EOTech EXPS3-4 Holographic Weapon Sight w/ G45.STS 5x Magnifier, Black, HHS V
EOTech EXPS3-4 Holographic Weapon Sight w/ G45.STS 5x Magnifier, Black, HHS V
(68)
List: $1,539.00 (Save $80.00)
$1,459.00
Trijicon MRO SD 1x25mm Reflex Red Dot Sight
Trijicon MRO SD 1x25mm Reflex Red Dot Sight
(1)
As Low As (Save Up to 30%)
$579.99
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Trijicon MRO SD Patrol 1x25mm Reflex Red Dot Sight
Trijicon MRO SD Patrol 1x25mm Reflex Red Dot Sight
As Low As (Save Up to 29%)
$846.99
See all 2 models
Free 2 Day Shipping
Vortex Magnifier w/ Flip Mount, Black, 4.3in, 11.9oz, VMX-3T
Vortex Magnifier w/ Flip Mount, Black, 4.3in, 11.9oz, VMX-3T
(288)
List: $279.99 (Save 36%)
$179.49
Best Rated
Trijicon MRO HD 1x25mm Red Dot Sights Combo Set, 68 MOA Reticle w/2.0 MOA Dot, Angled Glass, Black, 2200057
Trijicon MRO HD 1x25mm Red Dot Sights Combo Set, 68 MOA Reticle w/2.0 MOA Dot, Angled Glass, Black, 2200057
(9)
List: $1,494.00 (Save 26%)
$1,109.00
EOTech HHSVIII EXPS3-0 Holographic Red Dot Sight w/G33 3x Magnifier, 1x, 0-Reticle, Tan, HHS-VIII-TAN
EOTech HHSVIII EXPS3-0 Holographic Red Dot Sight w/G33 3x Magnifier, 1x, 0-Reticle, Tan, HHS-VIII-TAN
(2)
List: $1,349.00 (Save $70.00)
$1,279.00
Free 2 Day Shipping
EOTech G45 STS Mini 5x Red Dot Sight Magnifier
EOTech G45 STS Mini 5x Red Dot Sight Magnifier
(64)
As Low As (Save Up to $40.00)
$599.00
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Best Rated
Holosun HM3X Red Dot Magnifier, 3X, Integrated QD Mount w/Optional Spacer, Black, HM3X
Holosun HM3X Red Dot Magnifier, 3X, Integrated QD Mount w/Optional Spacer, Black, HM3X
(140)
List: $235.28 (Save 15%)
$199.99
SIG SAUER Combo Kit, Romeo-MSR Gen Ii 2 Moa Red Dot, Juliet3-Micro 3X22mm Magnifier, Black, SORJMSR101
SIG SAUER Combo Kit, Romeo-MSR Gen Ii 2 Moa Red Dot, Juliet3-Micro 3X22mm Magnifier, Black, SORJMSR101
(10)
List: $319.99 (Save 13%)
$278.49
EOTech HHS STC Holographic Hybrid Sight System with EXPS3-0 HWS, G33 Magnifier and STC, Matte Black, HHS STC
EOTech HHS STC Holographic Hybrid Sight System with EXPS3-0 HWS, G33 Magnifier and STC, Matte Black, HHS STC
List: $1,509.00 (Save $74.00)
$1,435.00
Free 2 Day Shipping
EOTech G-Series G33 3x Magnifier
EOTech G-Series G33 3x Magnifier
(154)
As Low As (Save Up to $34.00)
$529.00
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EOTech G43 Red Dot Sight Magnifier
EOTech G43 Red Dot Sight Magnifier
(14)
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$555.00
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10% Bonus Bucks
Holosun Hm3x-ti, Black - HM3X-Ti
Holosun Hm3x-ti, Black - HM3X-Ti
(19)
List: $352.93 (Save 15%)
$299.99
Free 2 Day Shipping
SIG SAUER Juliet5 Micro Magnifier
SIG SAUER Juliet5 Micro Magnifier
(44)
As Low As (Save Up to 31%)
$227.49
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Free 2 Day Shipping
Falke B3x Red Dot Sight Magnifier w/ Flip-Up Mount, Black, FAL30-0037
Falke B3x Red Dot Sight Magnifier w/ Flip-Up Mount, Black, FAL30-0037
(1)
List: $379.00 (Save 18%)
$309.00
Best Rated
Primary Arms GLx 6X Magnifier, Black, 510018
Primary Arms GLx 6X Magnifier, Black, 510018
(8)
List: $344.99 (Save 13%)
$299.99
Unity Tactical FAST FTC 4X Magnifier
Unity Tactical FAST FTC 4X Magnifier
(6)
List: $746.00 (Save $69.00)
$677.00
See all 1 models
Monstrum Ghost Reflex Red Dot Sight w/Ghost G3 3x Micro Magnifier, 1x20mm, 2 MOA, Black, RDT24B-3X
Monstrum Ghost Reflex Red Dot Sight w/Ghost G3 3x Micro Magnifier, 1x20mm, 2 MOA, Black, RDT24B-3X
(4)
$149.99
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Red Dot Sight Mounts

1–18 / 18
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Spuhr RDF-20225K Aimpoint T-2 Magnifier Mount Kit, Black
Spuhr RDF-20225K Aimpoint T-2 Magnifier Mount Kit, Black
(2)
$465.00
Best Rated
Strike Industries Glock Pistol Rear Sight Mount Adapter Plate
Strike Industries Glock Pistol Rear Sight Mount Adapter Plate
(6)
List: $54.95 (Save $5.00)
$49.95
See all 2 models
Best Rated
Unity Tactical Optics Riser Platform
Unity Tactical Optics Riser Platform
(104)
As Low As (Save Up to 10%)
$95.00
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Best Rated
Arisaka Defense Offset Optic Mount Base, 6061-T6 Aluminum, MIL-A-8625 Type III Hard Coat Anodized, Black, OOM-BASE
Arisaka Defense Offset Optic Mount Base, 6061-T6 Aluminum, MIL-A-8625 Type III Hard Coat Anodized, Black, OOM-BASE
(32)
List: $130.99 (Save 24%)
$100.00
Best Rated
Unity Tactical Fast Absolute Riser
Unity Tactical Fast Absolute Riser
(36)
List: $105.00 (Save 10%)
$95.00
See all 2 models
MAK Optics Makdot SH Red Dot Sight w/ P-Lock Mount, Glock 17/19 Gen 3/4, Black, 6150-91XX-0003
MAK Optics Makdot SH Red Dot Sight w/ P-Lock Mount, Glock 17/19 Gen 3/4, Black, 6150-91XX-0003
(4)
List: $579.99 (Save $4.99)
$575.00
Best Rated
Unity Tactical FAST Micro Mount
Unity Tactical FAST Micro Mount
(70)
List: $205.00 (Save $19.00)
$186.00
See all 2 models
EOTech Shift-To-Side Mount Kit 9-G33STS
EOTech Shift-To-Side Mount Kit 9-G33STS
(6)
List: $205.99 (Save $6.00)
$199.99
Free 2 Day Shipping
Wilcox 3X Magnifier Flip Mount
Wilcox 3X Magnifier Flip Mount
List: $1,329.01 (Save $66.45)
$1,262.56
See all 2 models
5% Bonus Bucks
LaRue Tactical ACOG/VCOG QD Mount, Black, LT100
LaRue Tactical ACOG/VCOG QD Mount, Black, LT100
(6)
List: $199.99 (Save 15%)
$169.99
Best Rated
Kinetic Development Group SIDELOK Aimpoint Micro Mount Lower 1/3 Co-Witness, Black SID5-120
Kinetic Development Group SIDELOK Aimpoint Micro Mount Lower 1/3 Co-Witness, Black SID5-120
(22)
List: $164.98 (Save $12.55)
$152.43
Best Rated
Unity Tactical FAST FTC Omni Mount
Unity Tactical FAST FTC Omni Mount
(47)
List: $293.00 (Save 10%)
$264.00
See all 2 models
Best Rated
Texas Weapon Systems Bitty Dot Mount, Universal Picatinny 5 Slot, Black Anodize, Small, 36100
Texas Weapon Systems Bitty Dot Mount, Universal Picatinny 5 Slot, Black Anodize, Small, 36100
(11)
List: $75.00 (Save $3.75)
$71.25
Best Rated
Arisaka Defense Offset Optic Plate 5 - Lower 1/3for Red Dot Sight Mount, Aimpoint Micro, Black, OOM-P5
Arisaka Defense Offset Optic Plate 5 - Lower 1/3for Red Dot Sight Mount, Aimpoint Micro, Black, OOM-P5
(15)
List: $45.00 (Save 33%)
$29.99
Samson Quick Flip Mounting Plate - Standard, M4 and Extended
Samson Quick Flip Mounting Plate - Standard, M4 and Extended
(1)
As Low As (Save Up to 22%)
$22.59
See all 3 models
Shield Sights Adapter Plate for Aimpoint T1/T2 QD Mounts, Black, 2x1.25x0.25 in, MNT-T1/T2-SMS/RMS
Shield Sights Adapter Plate for Aimpoint T1/T2 QD Mounts, Black, 2x1.25x0.25 in, MNT-T1/T2-SMS/RMS
List: $101.00 (Save $5.05)
$95.95
Evolution Gun Works Replacement Mount Screws, Steel, 49999
Evolution Gun Works Replacement Mount Screws, Steel, 49999
List: $3.00
$2.99
SIG SAUER Screw, Nylok, Sight Plate Mounting, 1302528-R
SIG SAUER Screw, Nylok, Sight Plate Mounting, 1302528-R
List: $9.49 (Save 16%)
$7.99
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Batteries

1–3 / 3
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Best Rated
Energizer 3 Volt Button Battery, CR2032, 353119
Energizer 3 Volt Button Battery, CR2032, 353119
(5)
$5.99
NcSTAR Gun Accessory - CR2032 Battery For All Red Dots & Ill. Scopes AB2032
NcSTAR Gun Accessory - CR2032 Battery For All Red Dots & Ill. Scopes AB2032
(1)
$5.99
TruGlo Battery Cr2032 2 Pk, TG-TG988C
TruGlo Battery Cr2032 2 Pk, TG-TG988C
List: $14.03 (Save 43%)
$7.99
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Holosun HE503CU 1x20mm 2 MOA Dot & 65 MOA Circle Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • Holosun Circle Micro Red Dot Sight 1x20mm, 2 MOA Dot, 65 MOA Circle, Black, HS503CU , MPN: HS503CU , UPC: 605930624540 , Code: 28Y-RD-RCJO-HS503CU
  • Holosun Circle Micro Red Dot, 2 MOA Dot, 65 MOA Circle, Black W/ Kinetic Development SIDELOK Aimpoint Micro Mount Lower 1/3 Co-Witness, Black , MPN: HS503CU-KIT1 , Code: 28Y-RD-RCJO-HS503CU-KIT1
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