About the Springfield 1911 Master Class

Springfield 1911 Master Class Silent Operator 45ACP Black Nitride with Threaded Barrel

Overview

The Springfield 1911 Master Class Silent Operator 45ACP Black Nitride with Threaded Barrel represents a purpose-built evolution of the classic 1911 platform, engineered for suppressed operation and tactical precision. As part of Springfield Armory’s Master Class series, this pistol is constructed around a forged carbon steel frame and slide, treated with a black nitride finish for enhanced corrosion resistance and reduced surface friction. The 5-inch barrel is threaded to accept standard compensators and suppressors, while the overall design retains the proven single-action trigger system and Series 70 firing mechanism that defines the 1911 lineage. Each unit is assembled in the United States and undergoes individual function testing before shipment.

Features & Specs

• Caliber and Barrel: Chambered in .45 ACP with a 5-inch forged stainless steel barrel featuring 1:16 twist rifling and factory-threaded muzzle (1/2×28 TPI). The barrel is treated with black nitride to match the slide and frame for uniform wear resistance.
• Frame and Slide: Forged carbon steel frame with integral plunger tube, flat mainspring housing, and serrated front strap. Slide features cocking serrations front and rear, low-profile combat sights with tritium front insert, and a loaded chamber indicator.
• Trigger and Safety: Factory tuned single-action trigger with a 4.5–5.5 pound pull weight. Ambidextrous thumb safety, grip safety with memory bump, and Series 70 firing pin safety (no Schwartz system).
• Finish and Dimensions: Black nitride finish on all metal surfaces, G10 grips with aggressive texture. Overall length 8.6 inches, height 5.5 inches, weight 40 ounces unloaded. Magazine capacity 7+1 rounds, includes two magazines.

The Springfield 1911 Master Class Silent Operator 45ACP Black Nitride with Threaded Barrel uses a standard Government profile bushing barrel system with a full-length guide rod. The threaded barrel is compatible with most .45 caliber suppressors and compensators. Slide-to-frame fit is hand-fitted and match-grade. The black nitride treatment penetrates the metal surface rather than coating it, providing a hardness of approximately 70 HRC and reducing the need for lubrication.

Who It’s For

This model is designed for the shooter who requires a suppressed-capable 1911 without compromising reliability or accuracy. It suits law enforcement personnel operating in tactical environments where sound signature reduction is necessary, as well as competitive shooters participating in USPSA Single Stack or IDPA CDP divisions who want a threaded barrel option for compensator use. The black nitride finish appeals to users in coastal or high-humidity regions where rust resistance is a priority. Collectors seeking a production-spec Springfield 1911 Master Class Silent Operator 45ACP Black Nitride with Threaded Barrel for a dedicated suppression setup will find this model factory-ready with no aftermarket barrel fitting required. It is not intended for concealed carry due to its full-size Government frame and weight.

Shipping & FFL

This firearm ships to a Federal Firearms License (FFL) holder in your state or locality. After placing your order, provide your chosen dealer’s current FFL license via email or fax. We verify each license before shipment. Signature is required upon delivery. No shipments to PO boxes or APO addresses for this item. Buyer is responsible for compliance with all state and local laws regarding threaded barrels, magazine capacity, and suppressor ownership. Returns or cancellations after shipment are not accepted; inspect the firearm at your dealer before accepting transfer. For questions about the Springfield 1911 Master Class Silent Operator 45ACP Black Nitride with Threaded Barrel, contact our customer service team prior to purchase.