21 Round 9MM Premium Magazine (Slidelock, 140mm, SS, Black)

THIS 140MM MAGAZINE FITS 1911 DOUBLE-STACK HANDGUNS

Atlas Gunworks Premium 2011 Magazines are available in a host of colors and configurations. We recommend premium magazines for shooters looking for high performance, good looks, or both. From competition to carry, we have you covered with the best magazine for most modular 1911 double stack and 2011 style pistols, including Staccato* and Springfield Prodigy.

Features: 

• Caliber: 9mm
• Capacity: 21 rounds
• Tube: 140mm Stainless Steel
• Follower: Lockback or No Lockback, adds 1-2 rounds
• Spring: + 18%
• Basepad: Anodized aluminum, adds 1 round, toolless
• Backed by the Atlas Magazine Warranty

Compatibility:

• All Atlas Gunworks Pistols with a tactical or carry magwell
• All known 2011 style and 1911 double stack modular pistols with no magwell or a Staccato Compatible Magwell
• Staccato*: Staccato C2, Staccato P, Staccato XL, Staccato XC using a Staccato Magwell
• Springfield: Prodigy 5" 1911 DS, Prodigy 4.24" 1911 DS

*Some Staccato Pistols made after August of 2024 have new frame dimensions, which prevent the use of all known aftermarket magazines.