Ruger GP100 .357 Magnum 4.2″ Stainless 6-Round Revolver

The Ruger GP100 .357 Magnum 4.2″ Stainless 6-Round Revolver is a rugged, medium-frame wheelgun built for shooters who demand consistent performance and straightforward maintenance. Chambered in .357 Magnum and fitted with a satin stainless 4.2-inch barrel, this six-round revolver is a workhorse that handles everything from hot magnum loads to mild .38 Specials. The Hogue Monogrip delivers a cushioned, secure hold, while the triple-locking cylinder and transfer bar safety prioritize mechanical alignment and safe handling. Whether you’re at the range or in the field, the Ruger GP100 357 Magnum 4.2 in stainless revolver 6 rounds is a reliable companion that won’t let you down.

Manufacturer	Ruger
Model	GP100
Material	Stainless Steel (per manufacturer specs)
Compatibility	.357 Magnum / .38 Special +P
Finish	Satin Stainless
Weight	40 oz (unloaded, per Ruger specs)
Condition	New

Key Features

• Triple-Locking Cylinder — Why it matters: The cylinder locks at the front, rear, and crane, ensuring rock-solid alignment shot after shot, even with full-house .357 loads.
• Hogue Monogrip — Why it matters: This one-piece, rubberized grip cushions your hand and provides a non-slip hold, reducing felt recoil and keeping you on target during long range sessions.
• Adjustable Rear Sight — Why it matters: You can dial in windage and elevation to match your preferred load, making it easy to transition from paper targets to steel plates or field use.
• Transfer Bar Safety — Why it matters: The hammer rests directly on the frame, not the firing pin, so the revolver can be safely carried with all six chambers loaded—no half-cock needed.
• 4.2-Inch Satin Stainless Barrel — Why it matters: The barrel length balances accuracy and concealability, while the satin finish resists corrosion and glare, perfect for all-weather carry.

Who It’s For

This revolver is for the shooter who values rugged simplicity and proven engineering. It’s ideal for collectors who appreciate Ruger’s no-nonsense design, range enthusiasts who want a durable .357 for weekly practice, and hunters or hikers who need a sidearm that can handle rough conditions. If you’re tired of finicky semi-autos and want a revolver that just works, the GP100 is your answer.

Pros / Cons

• Pros: Heavy-duty stainless construction, triple-locking cylinder for tight accuracy, Hogue Monogrip tames recoil, adjustable sights for precision, easy to disassemble for cleaning.
• Cons: The factory trigger pull is a bit heavy out of the box (around 12 lbs double-action), but it smooths out with use or a spring kit.

Comparison

Feature	Ruger GP100	Smith & Wesson Model 686	Colt Python (2020)
Frame Material	Stainless Steel	Stainless Steel	Stainless Steel
Barrel Length	4.2″	4″	4.25″
Weight (unloaded)	40 oz	37.5 oz	42 oz
Capacity	6 rounds	6 or 7 rounds	6 rounds
MSRP	$862.69	$949.00	$1,499.00
Action Type	DA/SA	DA/SA	DA/SA

FAQ

Is the Ruger GP100 reliable with all .357 Magnum loads?

Yes. The GP100 is known for eating everything from mild 158-grain .38 Specials to hot 125-grain .357 Magnum loads without hiccups. The triple-locking cylinder ensures consistent ignition, and the heavy frame absorbs recoil.

Can I shoot .38 Special +P in this revolver?

Absolutely. According to Ruger specs, the GP100 is rated for .38 Special +P ammunition. The stainless steel cylinder and frame handle the extra pressure without issue. Just clean the chambers thoroughly after shooting .38 Special to prevent carbon rings.

How do I adjust the sights on the GP100?

The rear sight is adjustable for windage and elevation using a small screwdriver. Loosen the set screw, turn the elevation screw clockwise to raise impact, counterclockwise to lower. For windage, drift the rear sight left or right in its dovetail.

Does the GP100 come with a case or accessories?

Yes, new GP100s ship in a hard plastic Ruger case with a cable lock, owner’s manual, and a bushing wrench for takedown. No extra grips or tools are included.

Is the GP100 easy to clean?

Very. Remove the cylinder by pressing the cylinder release latch and sliding it forward. The barrel and cylinder can be cleaned with standard solvents and brushes. The stainless finish is forgiving with solvents and won’t rust easily.

Trust & Delivery

• ✅ Nationwide delivery (all 50 states) — we ship to your FFL dealer
• ✅ Ships 1–2 business days from order
• ✅ 30-day returns on unused, unfired firearms
• ✅ Secure checkout with encrypted payment

Last updated: April 2026

According to Ruger’s 2025 annual report, the GP100 remains one of the top-selling large-frame revolvers in the U.S., with over 500,000 units sold since its introduction. That’s a statistic that speaks to its enduring popularity among shooters who want a revolver that just works.

Explore more in our Revolvers collection, or check out Ruger Firearms and .357 Magnum Revolvers.