Masterpiece Arms Defender M11-9SA 9mm Top-Cocking Pistol
The Masterpiece Arms Defender M11-9SA for sale is a 9mm semi-automatic pistol featuring a traditional top-cocking configuration. The M11-9SA was introduced as a return to a more traditional MAC-inspired configuration within the Defender product line. This model combines a 5.5-inch barrel with a 30-round MPA polymer magazine, adjustable front sight, fixed rear sight, and quick-release magazine catch.
Masterpiece Arms M11-9SA Features
- 9mm caliber
- Top-cocking configuration
- Semi-automatic operation
- 5.5-inch barrel
- 30-round MPA polymer magazine
- Adjustable front sight
- Fixed rear sight
- Quick-release magazine catch
- 3/4-10 TPI thread specification
M11-9SA Traditional Configuration
The M11-9SA was developed as a more traditional configuration within the Masterpiece Arms Defender lineup. The model designation identifies the M11 frame size, 9mm chambering, and semi-automatic action.
Barrel and Thread Specifications
The Masterpiece Arms Defender M11-9SA for sale features a 5.5-inch barrel with a listed thread specification of 3/4-10 TPI. Thread specifications should be verified against the manufacturer’s documentation before installing any compatible component.
Sight Configuration
The pistol uses an adjustable front sight paired with a fixed rear sight. This sight configuration provides the model-specific sight arrangement listed by Masterpiece Arms.
Magazine and Controls
The Masterpiece Arms Defender M11-9SA is supplied with a 30-round MPA polymer magazine. The pistol also incorporates a quick-release magazine catch as part of its control configuration.
Masterpiece Arms M11-9SA Specifications
| Specification | Details |
|---|---|
| Manufacturer | Masterpiece Arms |
| Model | M11-9SA |
| Series | Defender |
| Caliber | 9mm |
| Action | Semi-Automatic |
| Configuration | Top Cocker |
| Barrel Length | 5.5 inches |
| Magazine | MPA Polymer |
| Magazine Capacity | 30 Rounds |
| Front Sight | Adjustable |
| Rear Sight | Fixed |
| Magazine Catch | Quick Release Design |
| Thread Specification | 3/4-10 TPI |
Product Identification
Manufacturer: Masterpiece Arms
Model: M11-9SA
Series: Defender
Caliber: 9mm
Action: Semi-Automatic
Configuration: Top Cocker
Barrel Length: 5.5 inches
Magazine: MPA Polymer, 30 Rounds
Front Sight: Adjustable
Rear Sight: Fixed
Thread: 3/4-10 TPI
Important Product Information
Specifications, configurations, included components, and production details may vary by model. Verify the exact specifications with Masterpiece Arms or authorized documentation. Always comply with applicable federal, state, and local laws and regulations concerning firearms.




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