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Brownells

Ar-15 Sight Wrench - Ar-15 Sight Wrench, A1/A2 Combo

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Precision Machined

Square-profile fingers for firm sight-notch

A1 Five-prong

A2 four-prong tools support front

Double-ended A1/a2

Wrench fits both five-detent A1

Deeply Drilled

Body fits both issue and

Hex-shaped Body

Is easy to grasp, turn,

$15.99
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SKU: 078000010

Overview

Built for straightforward sight adjustment on AR-15 platforms, this wrench set gives shooters a practical way to work with both A1 and A2 sight configurations. The tool is machined from stressproof steel and uses square-profile fingers designed to grip sight notches securely, while the hex-shaped body makes it easier to hold and less likely to roll on the bench. It includes options for front and rear sight adjustment, with the A1/A2 double-ended wrench intended for both five-detent A1 and four-detent A2 front sights. For hunters and range users who want a compact, purpose-made sight tool, it offers a simple setup without unnecessary complexity.

Why Hunters Choose the Brownells

Fits Both

A1 and A2 sight styles

Square-profile Fingers

Grip sight notches firmly without

Deeply Drilled

Body fits issue and tall

Hex-shaped Body

Is easy to grasp, turn,

Includes Three

A1 five-prong and A2 four-prong

Key Features

  • Precision machined from stressproof steel with square-profile fingers for firm sight-notch grip.
  • A1 five-prong and A2 four-prong tools support front and rear sight adjustment.
  • Double-ended A1/A2 wrench fits both five-detent A1 and four-detent A2 front sights.
  • Deeply drilled body fits both issue and tall blade sights.
  • Hex-shaped body is easy to grasp, turn, and keep from rolling off the bench.
  • Blue finish; A2 wrench is designed for the standard A-2 style front post.

Best Used For

  • For AR-15 owners needing quick, precise front and rear sight adjustments at the bench.
  • For shooters maintaining both A1 and A2 sight systems with one compact tool.
  • For range users who want a small, easy-to-grip wrench that stays put on the bench.
  • For owners of standard A-2 style front posts seeking a dedicated adjustment tool.
  • For FN SCAR users needing a compatible A2-style sight wrench for front sight work.

Specifications

Blade FinishBlue finish
Blade SteelStressproof steel
CompatibilityA1 and A2 sights
Dimensions1-3/8 in (3.5 cm) long x 3/4 in (19 mm) diameter
Overall Length1-3/8 in (3.5 cm)
Prong CountA1: five-prong; A2: four-prong; A1/A2: four-prong/five-prong
Tool TypeSight wrench

Pros

  • Fits both A1 and A2 sight styles for convenient adjustment
  • Square-profile fingers grip sight notches firmly without rolling out
  • Deeply drilled body fits issue and tall blade sights
  • Hex-shaped body is easy to grasp, turn, and keep on bench
  • Includes three tools, with A1 five-prong and A2 four-prong options

Considerations & Trade-offs

  • Limited to A1/A2 sight configurations, so it is not a universal AR sight tool for every setup.
  • The compact wrench format is convenient, but it does not provide the leverage of a larger bench tool.
  • The blue finish and steel construction are functional, but the product description does not indicate any added corrosion or wear-specific treatment beyond that.
  • The A1/A2 double-ended tool is front-sight focused, so users should verify which sight type and detent pattern they need before purchase.

Suggested Comparisons

  • AR-15 sight adjustment tools
  • Front and rear sight tools
  • A1/A2 rifle sight wrenches
  • Bench tools for rifle maintenance

Suggested Accessories

  • Sight adjustment tool
  • Gun cleaning mat
  • Bench block
  • Armorer's tool kit

Frequently Asked Questions

Which sight types does this wrench work with?

The product is made for A1 and A2 sights. The A1 five-prong and A2 four-prong tools adjust front and rear sights, and the A1/A2 double-ended tool fits both five-detent A1 and four-detent, square-blade A2 front sights only.

Does this tool fit both front and rear sights?

Yes, the A1 five-prong and A2 four-prong tools are described as adjusting front and rear sights. The A1/A2 double-ended tool is listed for front sights only.

What is the wrench made from?

The listed specification says it is made from stressproof steel with a blue finish.

Will it fit taller blade sights?

The description says the deeply drilled body fits both issue and tall blade sights.

Are there different versions in this product?

Yes. The description mentions three tools: an A1 five-prong, an A2 four-prong, and an A1/A2 double-ended version. The A2 wrench is also noted as fitting FN SCAR.