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Atlas Gunworks

Overpowered Magazine Springs - 2011 Overpowered Magazine Spring +18%

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

Atlas Gunworks

Overpowered magazine spring for double-stack

Use Atlas

Lockbak Follower and a lockback

Fits 120mm

126mm magazines

This +18%

Spring is recommended for 126mm

Available +15%

+18% versions for different magazine

$11.99
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SKU: 430103624

Overview

Designed for shooters setting up double-stack magazines with a dependable lockback solution, this Atlas Gunworks spring is intended to work with the Atlas Lockbak Follower and a lockback slide stop, which are not included. It is made to fit 120mm and 126mm magazines, and the +18% version is specified for use with 126mm and 140mm magazines. For hunters and practical shooters who want a magazine spring matched to a specific setup, it offers a focused replacement option rather than a universal fit.

Why Hunters Choose the Atlas Gunworks

Use Atlas

Lockbak Follower and a lockback

Fits 120mm

126mm magazines

+18% Version

Is offered for 126mm and

Part Atlas

Gunworks' Overpowered Spring line

Clear Size-specific

Spring options help match magazine

Key Features

  • Atlas Gunworks overpowered magazine spring for double-stack platforms
  • Designed for use with the Atlas Lockbak Follower and a lockback slide stop
  • Fits 120mm and 126mm magazines
  • This +18% spring is recommended for 126mm and 140mm magazines
  • Available in +15% and +18% versions for different magazine lengths

Best Used For

  • Users setting up a double stack magazine system with an Atlas Lockbak Follower and lockback slide stop.
  • Shooters using 120mm magazines who want the +18% spring option for compatible setups.
  • Owners of 126mm magazines needing a spring matched to Atlas Gunworks’ overpowered spring sizing guidance.
  • Hunters and range users building a magazine lockback solution around Atlas Gunworks components.
  • Users comparing spring options for 120mm, 126mm, or 140mm magazine fitment requirements.

Specifications

Available Variants+15% and +18%
Compatibility2011 double stack platform
Fit120mm and 126mm
Follower IncludedNo
Recommended Use126mm/140mm magazines
Required ComponentsAtlas Lockbak Follower and a lockback slide stop
Slide Stop IncludedNo
Spring Percentage+18%

Pros

  • Designed for use with the Atlas Lockbak Follower and a lockback slide stop
  • Fits 120mm and 126mm magazines
  • +18% version is offered for 126mm and 140mm magazines
  • Part of Atlas Gunworks' Overpowered Spring line
  • Clear size-specific spring options help match magazine setup

Considerations & Trade-offs

  • Requires the Atlas Lockbak Follower and a lockback slide stop; it is not a standalone fix.
  • The +18% version is specified as best suited to 126mm/140mm magazines, so it may be a less direct fit for 120mm setups.
  • Compatibility is limited to the listed 120mm and 126mm magazine lengths, so it is not a universal magazine spring option.
  • The product is offered in both +15% and +18% versions, so choosing the correct one depends on your magazine length and intended setup.

Suggested Comparisons

  • Pistol magazine springs
  • Magazine followers
  • Slide stops
  • Handgun magazine accessories

Suggested Accessories

  • Magazine loader
  • Replacement follower
  • Magazine base pad
  • Cleaning brush

Frequently Asked Questions

What magazines is this spring made to fit?

It is made to fit 120mm and 126mm magazines.

Which magazine lengths is the +18% spring intended for?

The product description says the +18% spring works best with 126mm/140mm magazines.

Do I need any other parts to use this spring?

Yes. The description says it is intended to be used with the Atlas Lockbak Follower and a lockback slide stop. The follower is not included.

Is this spring available in other versions?

Yes. It is available in both +15% and +18% versions.

Which version is recommended for 120mm/126mm magazines?

The description says the +15% spring works best with 120mm/126mm magazines.