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Questions & Answers
Hello. I would like to know what is the minimum distance for the Parallax adjustment? Expert Answer

The minimum parallax distance adjustment for the Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle is 50 yards.

by Ethan, Gear Expert, January 16, 2023
Will this barks 3-12x40 AC10008 Rifle Scope fit in Gamo Swarm Maxxim? Expert Answer

As long as the rings are 1 inch tube and medium ring height it can fit.

by Ryan Tarczynski, Gear Expert, October 22, 2021
Customer Reviews
Helpful Positive Review Barska 3-12x40 airgun scope. by Legacy Reviewer, Verified Owner, July 24, 2007
I first bought one these scopes as a "starter scope" for my RWS 350 magnum. You know something cheap to get me by. Well let me say i was shocked when i opened the box. Nice finish, smooth adjustments, clear optics all the way to 12X, finger tip winda...
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56/57 found this helpful
Helpful Positive Review Good scope for the money by Dale3831, October 7, 2019
We have a few of these scopes they perform very good can’t beat it for the money constructed solid and clear view really like the A/O feature of the scope great magnification definitely would recommend we have these on our GAMO air rifles we have 5 f...
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4/4 found this helpful
Helpful Positive Review Barska 3-12x40 Good So Far by Legacy Reviewer, Verified Owner, September 7, 2013
I'll come back and review at length once I've used this item a little longer. It was on my Xisico, but not it is on my son's gamo hunter (that is in bad need of a trigger tune). Pros: Holding up to xs28m magnum kick Cons: Time will tell
2/4 found this helpful
Helpful Positive Review Great valve-Great performer by Mr. Wizard, April 9, 2015
I wanted to give the Barska BK-RS-AC10008 a fare chance on my 1980 RWS Diana 45. This rifle has a history of knocking air rifle scope out of zero in 30 to 50 shots. I now have 500 shots with it and it still holds zero. With the first focal plane mil...
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5/6 found this helpful
Helpful Positive Review Tremendous value by Chris, August 29, 2016
Bought this scope for an air rifle and it performs perfectly. This is a good price for a great scope that is clear, has easy adjustment and stays on target. If your looking for that one scope that has it all for a low price, this is it.
3/4 found this helpful
Helpful Positive Review Barska air gun scope 3x12x40w Mil Dot /Adju rect. by Legacy Reviewer, Verified Owner, August 1, 2010
I mounted this scope on a 22Cal Beaman pellet rifle.Easy to make windage/elevation adjustments.Holds adjustments.Very clear optics,a lot of scope for the money. Pros: clear optics/elevation/windage hand adjust positive clicks/price Cons: none
1/2 found this helpful
Read All 36 Reviews
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Product Info for Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008 Rifle Scope

Barska 3-12x40 AO Air Gun Rifle Scope w/ Adjustable Objective - AC10008 is designed to withstand extraordinary punishing recoil energy generated in airguns. Featuring multi-range parallax setting adjustments and a Mil-Dot reticle, Barska 3-12x40mm Airgun Rifle Scope delivers the accuracy and precision needed. The 3-12 x 40mm Barska Air Gun Scope also offers crystal clear fully coated optics and affordable pricing. Furthermore, like most of Barska Rifle Scopes, Barska Airgun Scope 3-12 x 40 mm is waterproof, fogproof and shockproof. So, Barska Airgun Scopes are ideal for competition and recreational shooters.image

Barska Air Gun Rifle Scopes come with scope caps. All Rifle Scopes by Barska are covered by Barska Limited Lifetime Warranty.

Specifications for Barska Air-Gun 3-12x40AO Mil Dot Scope:

Description:   3-12x40 AO
Magnification:   3-12x
Objective Lens Dia.(mm):   40mm
Reticle:   Mil-Dot
Field of View (ft @ 100yds / m @ 100m):   35 / 11.6 @ 3x

 9 / 3 @ 12x

Exit Pupil (mm):   13.3-3.3 mm
Eye Relief (inch):   4.2"
Click Value (inch):   1/4"
Tube Diameter:   1"
Finish:   Black Matte
Weight (oz):   18.1 oz
Length (inch):   13.66"

Features of Barska 3-12x 40mm Airgun Rifle Scope AO:

  • Waterproof, fogproof and shockproof
  • Fully coated optics
  • 1 inch tube construction
  • Adjustable objective lens to adjust for parallax
  • 1/4 MOA fingertip adjustments
  • Mil-Dot reticle
  • Designed to withstand the punishing recoil energy of airguns

Package Contents:

  • Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008
  • Scope Caps

In addition to Barska 3-12x40mm AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008, make sure to check other Barska Rifle Scopes and other Barska products offered in our store.

WARNING: California`s Proposition 65

Specifications for Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008 Rifle Scope:

Manufacturer: Barska
Objective Lens Diameter: 40 mm
Magnification: 3 - 12 x
Reticle: Mil-Dot
Tube Diameter: 1 in
Reticle Focal Plane: Second Focal Plane (SFP)
Exit Pupil: 3.3 - 13.3 mm
Illumination Color: None
Finish: Matte
Field of View, Linear: 9.3 ft at 100 yds
Eye Relief: 4.2 in
Color: Black
Weight: 18.1 oz
Adjustment Click Value: 0.25 MOA
Length: 13.6 in
Adjustment Type: MOA
Parallax: Adjustable
Illumination Type: Non-Illuminated
Width: 2.5 in
Height: 2.5 in
Lens Material: Glass
Optical Coating: Fully Coated
Weather Resistance: Yes
Water Resistance Level: Waterproof
Shockproof: Yes
Fogproof: Yes
Package Type: Box
Magnification Type: Variable
W/E Travel at 100 Yds: 60 MOA

Features of Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008 Rifle scope

  • Magnification (Zoom) 3x-12x
  • Objective Lens 40mm
  • Tube Diameter 1 in
  • Eye Relief 4.2 in
  • Exit Pupil 13.3mm - 3.3mm
  • Click Value 1/4 MOA
  • Field of View(ft@100yds / m@100m) 35 /11.6 @ 3x , 9 / 3 @ 12x
  • Reticle Mil-Dot
  • Reticle Illumination None
  • Reticle Color Black
  • Turret Style Capped
  • Focal Plain Second
  • Optical Coating Fully Coated
  • Parallax Adjustment Objective
  • Waterproof Yes
  • Fogproof Yes
  • Product Weight 18.1 oz
  • Length 13.66 in
  • Finish Black Matte

Package Contents:

  • Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008 Rifle scope
  • Scope Caps Lens Cloth

Barska 3-12x40 AO Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008 Rifle Scope Orderable Models

List of Orderable Models

Barska 3-12x40 Air Gun Rifle Scope w/ Leapers Accushot Premium Airgun .22 Full Length Integral Medium Profile Mount , MPN: AC10008-KIT , Code: BK-RS-AC10008-KIT
Barska 3-12x40 Air Gun Rifle Scope w/ Mil Dot Reticle & Adjustable Objective - AC10008 , MPN: AC10008 , UPC: 790272802135 , Code: BK-RS-AC10008
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