The Checkmate 2011 Compatible 18-Round Magazine is a high-quality stainless steel magazine designed for 2011-style pistols chambered in 10mm Auto or .40 S&W. It is compatible with popular platforms such as Staccato, Springfield Prodigy, EAA Girsan Witness, Kimber 2K11, and other double-stack 1911/2011 pistols.
This 140mm magazine features a durable stainless steel body, a high-performance spring, and a polymer follower for smooth, reliable feeding. It is an excellent choice for competition, duty, or range use where extended capacity is needed.
Key Specifications:
- Caliber: 10mm Auto / .40 S&W
- Capacity: 18 rounds
- Body: Stainless steel (SS)
- Length: 140mm
- Follower: Polymer (anti-tilt design)
- Spring: High-tension steel
- Baseplate: Polymer (removable for easy cleaning)
- Compatibility: Most 2011 / double-stack 1911 pistols in 10mm or .40 S&W (Staccato, Prodigy, etc.)
Why Choose the Checkmate 2011 10mm/.40 S&W 18-Round Magazine?
- Proven Reliability — Checkmate magazines are known for consistent feeding and long-term durability in high-round-count use.
- Stainless Steel Construction — Strong, corrosion-resistant body that holds up to heavy use and easy maintenance.
- Smooth Feeding — Optimized follower and spring design reduce malfunctions and improve performance.
- Easy Maintenance — Tool-free or simple disassembly for cleaning.
- Great Value — High-capacity 2011 magazine at a competitive price from a trusted American manufacturer.
This magazine is an excellent upgrade or spare for 10mm or .40 S&W 2011 pistol owners who want reliable extended capacity.