Handgun MagazinesAtlas GunworksSold by Brownells

Atlas Gunworks

2011(R) Compatible 126mm 18rd Slidelock Magazines 9mm - 2011 126mm Dlc Slidelock Magazine Base Pad Blk 9mm

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

Atlas Gunworks

2011-compatible 126mm Slidelock magazine for

18-round Lockback

Capacity

Works .38

.38 Super and .38 Super

All Modular

Grip double stacks

Redesigned, Dimensionally

Correct magazine body

$109.99
View on Brownells

You'll be taken to Brownells to complete your purchase.

Hunter's Outpost earns a commission from affiliate links at no extra cost to you.

SKU: 430103619

Overview

Built for 2011-pattern pistols with modular grip double stacks, this 126mm magazine is intended for shooters who want an 18-round 9mm option with lockback capability. Atlas Gunworks pairs redesigned internal and upper tube dimensions with a proper follower and +18% spring to support feeding and slide lockback. The 9mm tube is also listed as compatible with .38 Super and .38 Super Comp, adding flexibility for shooters running those chamberings. Its discrete 4mm base pad keeps the profile compact for practical range use and competition-oriented setups.

Why Hunters Choose the Atlas Gunworks

New Internal

Dimensions are designed to improve

Upper Tube

Dimensions and proper follower support

Works 9mm,

9mm, .38 Super, and .38

Compatible All

All modular grip double-stack platforms

18-round Lockback

Capacity offers practical range and

Key Features

  • Atlas Gunworks 2011-compatible 126mm Slidelock magazine for 9mm.
  • 18-round lockback capacity.
  • Works with .38 Super and .38 Super Comp in 9mm tubes.
  • Designed for all modular grip double stacks.
  • Redesigned, dimensionally correct magazine body.
  • Includes a discrete premium 4mm basepad.

Best Used For

  • 2011 owners needing a 126mm slidelock magazine for range practice or match use
  • Shooters using modular grip double stacks who want an 18-round lockback-capable magazine
  • Users running 9mm, or .38 Super and .38 Super Comp within compatible setups
  • Hunters and enthusiasts wanting a compact magazine with a discrete 4mm basepad

Pros

  • New internal dimensions are designed to improve feeding in all 2011s.
  • Upper tube dimensions and proper follower support reliable slide lockback.
  • Works with 9mm, .38 Super, and .38 Super Comp cartridges.
  • Compatible with all modular grip double-stack platforms.
  • 18-round lockback capacity offers practical range and match use.
  • Redesigned mag body and +18% spring support consistent feeding and lockback.

Considerations & Trade-offs

  • Designed around 2011 126mm slidelock use, so it is not a general-purpose magazine for other platforms or lengths.
  • The 18-round lockback capacity may be a trade-off for shooters who prioritize maximum capacity over a compact 126mm profile.
  • It is described as working with 9mm, .38 Super, and .38 Super Comp, but fit and function still depend on the specific modular grip double stack setup.
  • The discrete 4mm basepad is intentionally low-profile, which may be less convenient for users who prefer a larger basepad for handling or indexing.

Suggested Comparisons

  • Pistol magazines
  • 2011-compatible magazines
  • 9mm magazines
  • Double-stack handgun magazines

Suggested Accessories

  • Magazine pouch
  • Speed loader
  • Cleaning kit
  • Range bag

Frequently Asked Questions

What pistols are these magazines designed to work with?

They are designed to work with all modular grip double stacks in the 2011 platform.

What is the magazine capacity?

The listed lockback capacity is 18 rounds.

Can these 9mm magazines be used with .38 Super or .38 Super Comp?

Yes. The product data states that the 9mm tubes work with .38 Super and .38 Super Comp.

What features are included to support feeding and lockback?

The product data lists new internal dimensions, new upper tube dimensions, a proper follower, a redesigned dimensionally correct mag body, a +18% spring, and a premium follower, all intended to support feeding and lockback.

Does the product include a base pad?

Yes. The description specifies a discrete premium 4mm basepad.