Smith & Wesson K Frame Model 13 Grooved Trigger - .265" Black
Part Number: K873
Condition: Used - Excellent
Frame: K Frame
Model: 13
Caliber: .357 Magnum / .38 Special
Trigger Width: .265 inches
Finish: Black
Style: Grooved (Serrated)
Weight: 4 oz
Product Details
Genuine Smith & Wesson factory grooved trigger for the K Frame Model 13 revolver. This .265-inch wide trigger features a grooved (serrated) face for positive finger contact and control. Black finish provides corrosion resistance and a professional appearance. Cleaned, inspected, and guaranteed for reliable performance. Perfect for repairs, restoration, or trigger upgrades on your service revolver.
About the Model 13
The Smith & Wesson Model 13 is a heavy-barrel, fixed-sight service revolver built on the medium K Frame platform. Introduced in 1974, the Model 13 was designed specifically for law enforcement use and became extremely popular with police departments throughout the 1970s and 1980s. Chambered in .357 Magnum (also fires .38 Special), the Model 13 is known for exceptional durability, reliability, and accuracy. The heavy barrel reduces recoil and improves accuracy during rapid fire.
Trigger Specifications
The .265-inch trigger width is the standard service trigger size for K Frame revolvers. The grooved face provides excellent tactile feedback and prevents finger slippage during double-action shooting. This trigger is wider than target triggers (.312" or .500") but narrower than combat triggers (.400"+), making it ideal for duty use where a balance between speed and precision is required.
Function & Compatibility
The trigger is the primary interface between shooter and revolver. When pulled, it rotates the cylinder, cocks the hammer (in double-action), and releases the hammer to fire. The grooved surface provides positive contact for consistent trigger control, especially important in double-action shooting. Proper trigger pull technique is essential for accuracy with revolvers.
This trigger is specifically designed for Smith & Wesson K Frame Model 13 revolvers chambered in .357 Magnum. It may also fit other K Frame models with similar specifications - contact us to verify compatibility for your specific revolver.
K Frame Service Revolvers
The K Frame is Smith & Wesson's medium-frame size, used for iconic models like the Model 10, 13, 14, 15, 19, 64, 65, 66, and 67. The Model 13 is essentially a fixed-sight version of the adjustable-sight Model 19 Combat Magnum. K Frame revolvers were the standard police sidearm for decades and remain popular for home defense, competitive shooting, and concealed carry.
How to Identify Your S&W Model
To determine your Smith & Wesson revolver model number, swing out the cylinder and check behind the yoke on the frame for the model number stamped into the metal. You should see "13" or a dash variant like "13-1", "13-2", etc. Model numbers began in 1957-58. If no model number is present, your revolver may be pre-1957. Contact us with your serial number for assistance in identifying the correct parts.
Installation & Specifications
- Professional gunsmith installation strongly recommended
- Requires disassembly of grip frame and internal action components
- Trigger must be properly fitted to ensure correct engagement with other parts
- Improper installation can cause dangerous malfunctions
- Factory OEM part manufactured to exact S&W specifications
- Used part cleaned, inspected, and guaranteed
- Compatible with K Frame Model 13 revolvers
- May fit other K Frame models - verify compatibility
- Grooved face for positive finger contact
- .265" width - standard service size
Trigger Performance Notes
The trigger directly affects shooting performance. A grooved trigger provides better tactile feedback than smooth triggers, helping shooters maintain consistent finger placement. The .265" width is narrow enough for precise single-action work but wide enough for comfortable double-action shooting. Trigger pull weight and smoothness depend on the entire action, not just the trigger itself.
Condition Notes
This is a used OEM trigger removed from a functioning Smith & Wesson Model 13 revolver. Has been professionally cleaned and inspected. Shows normal wear consistent with use. All engagement surfaces have been checked for excessive wear or damage. Grooves are sharp and well-defined. Black finish may show minor wear typical of service revolvers. Guaranteed to function properly.
Contact Us
We specialize in Smith & Wesson pistol and revolver parts - used, new old stock, refurbished, and new. Our team has extensive knowledge of S&W firearms and can help you find the exact parts you need for your K Frame revolver.
Questions? Email sales@usagunsandgear.com or call 770-544-8075