Ruger GP100 357 Mag

This Ruger GP100 Mag revolver is a pre owned example chambered in 357 Mag, and it arrives fully stripped, serviced, and presenting excellent. GP100 double action revolvers are among the most comfortable shooting wheelguns ever built, which is exactly why they have stayed in production for decades. The rugged, medium sized frame and grip system permit repeated firings with minimal shooter fatigue. Outpost Firearms is offering this one to shooters who want proven magnum performance without paying new gun money.

What Makes the Ruger GP100 Mag Different

All GP100 revolvers boast solid steel sidewalls with no side plates. That single design decision is the reason the platform has the reputation it does, because a frame without a removable plate has no built in weak point in the area that takes the most abuse. Frame widths are increased with extra steel in critical areas that support the barrel.

The result is a revolver that is rugged, reliable, and dependable under a steady diet of full power magnum loads. Plenty of medium frame revolvers will shoot 357 Magnum. Rather fewer will do it for years without loosening up, and that distinction is the entire argument for this gun.

Features and Configuration

• Chambered in .357 Magnum, which also allows the use of .38 Special ammunition
• Double action revolver mechanism with a six round capacity
• Hogue recoil reducing monogrip for a comfortable hold under magnum recoil
• Fixed front sight paired with a fully adjustable rear sight
• Six inch barrel and a 45 ounce weight that soaks up recoil
• All steel construction with solid sidewalls and no side plate

Weight, Barrel Length, and Handling

At 45 ounces with a six inch barrel, the Ruger GP100 Mag is not a pocket gun and was never meant to be one. That mass is the feature. Weight in the frame and out front turns a sharp magnum snap into a firm push, which is what lets shooters run hundreds of rounds in a session without flinching by the end of it.

The six inch tube also does real work on velocity. Full power .357 Magnum loads are designed around longer barrels and give up meaningful performance in a snub nose. Out of six inches you get what the load was actually built to deliver, along with a longer sight radius that makes precise shooting easier.

The adjustable rear sight matters for the same reason. Revolvers shooting a wide spread of bullet weights, from light .38 Special wadcutters to heavy 158 grain magnum loads, print to very different points of impact. Being able to dial the rear sight means you can zero for whatever you actually shoot.

Uses, Ammunition, and Care

This configuration suits target shooting, woods carry, handgun hunting within sensible ranges, and home defense from a nightstand. Being able to feed .38 Special makes practice cheap and pleasant, then switch to magnum loads when the job calls for it. Very few defensive handguns offer that range of behavior from a single gun.

Clean the cylinder chambers thoroughly if you shoot a lot of .38 Special through a .357 chamber, because the shorter case leaves a carbon ring that will eventually make magnum rounds hard to seat. Scrub the forcing cone, keep the crane and ejector rod clean, and put a light film of oil on the exterior. Grip screws and ejector rods can back out under recoil, so check them periodically.

Since this is a pre owned Ruger, it has already been stripped and serviced, but a fresh inspection and function check before you carry it is always sound practice. You can see the rest of the current inventory in our firearms category.

Buying a Used GP100

A used Ruger GP100 Mag revolver in good order is one of the best values on the used handgun market. These guns were overbuilt from the start, and a serviced example will outlast most of its owners. Buy it as a range gun, a woods gun, or a nightstand gun, and it will happily be all three. Like every firearm, it ships to your local licensed dealer for transfer after your background check.