Description
The HKS 587A is built for L-frame revolvers that hold seven rounds, fitting the S&W 686 and Taurus 617, 817, 827, and 66 models perfectly. It holds .38 Special and .357 Magnum interchangeably since they share the same cylinder dimensions. The loader uses strong metal retention points to grip your cartridges securely, so you won't lose a round in the field. When you're ready to reload, just line up the round noses with the cylinder chambers and twist the knurled aluminum knob to release all seven at once.
How the 587A twist-knob design works
Load your cartridges by pressing them into the holes, then turn the knob counter-clockwise to lock them tight. When it's time to reload, grasp the plastic body of the loader, align the round noses with your open cylinder, and twist the knob clockwise. A quick shake helps the rounds seat if needed. It's simple and repeatable, which is exactly why law enforcement and competitors have relied on HKS for decades. The design requires no cartridge jiggle or fussing once you practice the technique.
Compact, durable plastic and aluminum construction
The body is tough Delrin plastic with a knurled aluminum knob that gives you sure grip even under stress. It's lightweight enough to toss in a range bag without adding bulk, yet substantial enough to handle hundreds of reloads without wearing out. The black finish resists corrosion, and HKS stands behind their product if anything ever goes wrong. Made in the USA, this loader is priced right and widely available from sporting goods retailers.
Key Specifications
- Manufacturer: HKS
- Model: 587A
- UPC: 088652005871
- Manufacturer Part Number: 587-A
- Caliber: .38 Special / .357 Magnum
- Capacity: 7 rounds
- Compatible Revolvers: S&W 686 (7-shot), Taurus 617, 817, 827, 66 (all 7-shot)
- Body Material: Delrin plastic
- Knob Material: Knurled aluminum
- Color: Black
- Series: A-Series
- Release Type: Twist-knob mechanism
- Dimensions: 6.2" H x 3.8" W x 1.65" D
- Weight: Approximately 0.3 ounces
- Country of Origin: United States
What’s Included
- 1 HKS 587A speedloader with aluminum knob
Frequently Asked Questions
Will the HKS 587A fit my revolver?
The 587A is designed for 7-shot L-frame .38/.357 revolvers including the S&W 686 and Taurus 617, 817, 827, and 66 models. It will not fit 5-shot or 6-shot revolvers, or smaller J-frames. Always verify your revolver model and round capacity before ordering to ensure proper fit.
Do I have to practice to use this speedloader?
The basic mechanics are simple: press cartridges in, lock the knob, align with the cylinder, twist to release. However, practice improves speed and reliability. Most people benefit from dry-firing practice with snap caps or dummy rounds to build muscle memory for consistent technique.
Can I use the 587A speedloader for both .38 Special and .357 Magnum?
Yes. Both calibers share the same cylinder dimensions in L-frame revolvers, so one loader works for either cartridge. Just make sure your revolver is actually chambered for both, which is the case with S&W 686 and Taurus L-frame models.
How secure are the cartridges in the HKS 587A?
The metal retention points hold cartridges firmly once you twist the knob to lock position. If dropped or jostled while locked, the rounds should stay in place. The design has been proven in the field for decades, though proper storage and handling always matter.





Reviews
There are no reviews yet.