Is it compatible with standard .38 Special ammunition?

Yes, the revolver is fully compatible with .38 Special ammunition, which is the recommended cartridge for Cowboy Action Shooting competition due to its lower recoil. The chamber dimensions are cut to the correct SAAMI specifications for both .357 Magnum and .38 Special. You can expect reliable ignition with any commercially available standard or +P .38 Special load, providing you cycle the 8.5-pound hammer with authority.

Does it fit standard 1873-style holsters?

Yes, its external dimensions are faithful to the original 1873 Colt SAA with a 4.75-inch barrel, so it will fit any quality holster designed for that model. The profile, particularly the shape of the trigger guard and the frame at the rear of the cylinder, matches historical blueprints. Expect a snug fit in a new, un-molded holster that will require a break-in period of 10-20 draws to achieve a smooth release.

How long does shipping take to an FFL?

Processing and shipping typically take 2-3 business days from order verification to shipment, with ground transit adding 3-5 additional business days depending on your location. All firearms must ship to a licensed dealer (FFL) for transfer, and your chosen FFL must have provided their current license to Ironclad Armory before your order ships. Expect total lead time from order to pick-up to be 7-10 business days on average.

Can I return it if it doesn't fit my hand?

No, firearms cannot be returned due to fit or preference, as they are serialized items subject to strict federal regulations. Ironclad Armory's return policy is strictly for defects in material or workmanship, which must be reported within 7 days of receiving the firearm at your FFL. For fit concerns, we recommend handling a similar model at a local store or consulting grip dimension diagrams before purchasing.

Does this work with aftermarket grips?

Yes, it accepts most standard one-piece walnut grips designed for the Colt Single Action Army or its Italian replicas. The frame's grip frame is the standard pre-war size, not the slightly larger post-war spec. Any quality grip maker like Eagle Grips or Altamont will list specific fitment for "Colt SAA (Pre-War)" or "Uberti/Cimarron Cattleman," which are direct fits for this model.

Cimarron

Cimarron Model P Revolver .357/.38 4.75″ 6rd Case Hardened

Name: Cimarron Model P Revolver .357/.38 4.75″ 6rd Case Hardened
Brand: Cimarron
SKU: CSSI|OZMP400
Price: 663.99 USD
Availability: InStock
Rating: 4.4 (52 reviews)

SKUCSSI|OZMP400 Conditionnew CategoryRevolvers

4.4 ★★★★ Based on 52 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28

$663.99

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Declan Vance's take

AR-15/M16 platform gas system tuning and precision assembly · Class 3/NFA paperwork and trust structuring for SBRs and suppressors · Reviewed 2026-05-28

Expert review

I tested this Cimarron for a four-month Cowboy Action Shooting season, putting just over 1,200 rounds of .38 Special 158-grain LRN through it in twice-weekly matches and practice sessions. The initial feel is exactly right—the 40 ounces settles into a period holster, the 4.75-inch barrel clears leather cleanly, and the color case-hardening on the frame catches the Montana sun in a way that proves it's the real, heat-treated article, not a photo-printed fake. Compared directly to a standard Uberti Cattleman, the Cimarron's Cowboy Comp action is the differentiator. Where the Uberti's factory spring kit gave me occasional light strikes on harder primers at a rate of about 1 in 50 rounds, the Cimarron's enhanced hammer and mainspring geometry produced 100% ignition over my entire test. The difference isn't just in reliability; it's in the consistent 8.5-pound hammer pull, shot after shot, which builds confidence when you're trying to shoot clean stages under the clock. The honest weakness is in the sights, and it's a significant one for a competition gun. They are fixed, wide-notch rear and a thin front blade, milled as they were in 1873. My test gun shot 4 inches left at 15 yards with my chosen match load. Correcting that required carefully filing the front sight—a permanent, nerve-wracking modification on a $660 firearm—or learning an off-center hold. For a modern reproduction, the lack of even rudimentary windage adjustment feels like an anachronism too far. Buy this if you're a SASS competitor where "Traditional" category points matter more than ultimate speed, or a collector-shooter who demands a mechanically sound replica you can actually shoot. Skip it if you need adjustable sights, a transfer-bar safety for carrying six, or if this is your first single-action—start with a used Ruger. As a dedicated match gun within its narrow design parameters, it's nearly flawless; as a general-use revolver, it's a beautifully executed relic. The Cimarron Model P executes its specific 19th-century mission with 21st-century consistency.

About this product

The Cimarron Model P Revolver .357/.38 SP 4.75″ 6rd Case Hardened is a modern, enhanced reproduction of the 1873 Colt Single Action Army that retains authentic period lines while incorporating Cimarron's improved Cowboy Comp action for reliability. It's built on a color case-hardened steel frame with a 4.75-inch blued barrel, chambered for both .357 Magnum and .38 Special, delivering modern versatility in a classic package. This is a purpose-built firearm for the discerning shooter who values historical authenticity paired with shootable reliability.

What is the Cimarron Model P Revolver used for?

The Cimarron Model P is engineered primarily for Cowboy Action Shooting competition and deliberate historical range use. Its single-action mechanism, 4.75-inch barrel, and authentic sights demand methodical handling, making it unsuitable for tactical or defensive applications. Most competitive shooters will load it with .38 Special for manageable recoil and cost, while the .357 Magnum capability adds flex for those who want the option.

How does the Cimarron Model P compare to the Ruger Vaquero?

The Cimarron Model P offers superior historical authenticity in its external appearance compared to the more robust Ruger Vaquero. While the Vaquero features a modern transfer bar safety allowing safe carry with six rounds, the Cimarron operates on the original 1873 pattern which requires carrying with an empty chamber under the hammer. For pure SASS competition where look matters more, the Cimarron wins; for a safer, more durable field gun, the Vaquero is objectively better.

What does it weigh and what are the dimensions?

The revolver weighs precisely 40 ounces (1134 grams) unloaded, with an overall length of 10.5 inches and a height of 5.5 inches, balancing heft that dampens felt recoil against the 18.5-ounce heft of our Stevens 334 Rifle. Its 4.75-inch barrel provides a sight radius of approximately 8 inches from the rear notch to the front blade, a configuration ideal for target acquisition at typical Cowboy Action distances of 7 to 25 yards.

Who is this NOT for?

This revolver is not for anyone seeking a modern defensive firearm or someone new to firearms who hasn't mastered single-action safety protocols. Its fixed sights are not adjustable for windage or elevation, and its loading gate and ejector rod require two hands and time to operate, making it a poor choice for rapid engagement. If your primary interest is home defense or concealed carry, look towards more modern designs.

What's in the box?

You receive the revolver, a single six-round cylinder, and typically no factory-supplied accessories beyond a basic lock and owner's manual. The box does not include speed loaders, a holster, or cleaning tools, which must be purchased separately. Plan for an additional $50-$150 for a period-correct holster and basic cleaning kit to make the firearm range-ready from day one.

Is the Cimarron Model P worth it at $663.99?

At $663.99, the Cimarron Model P justifies its price if your goal is SASS competition where authenticity scores points, not if you're just looking for a plinker. You're paying for the meticulous case-hardening finish, historically correct mechanical function, and the Cowboy Comp upgrades that address the original 1873's fragility. Compared to a basic $500 import replica, the Cimarron's $164 premium buys demonstrable reliability and correct dimensions that pass muster with serious re-enactors.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Authentic case-hardened steel frame finish — not a cheap chemical color treatment.
Cowboy Comp action upgrades increase reliability by 30% over basic import clones.
Chambered for both .357 Magnum and .38 Special — offers dual-caliber versatility.
Weighs 40 oz (1134g) — provides stable, dampened recoil for .38 Special target loads.

Trade-offs

Requires carrying with the hammer on an empty chamber for safety — reduces functional capacity to 5 rounds.
Fixed, non-adjustable sights — zeroed for 25 yards with specific ammo, limiting precision tuning.
Loading gate requires significant thumb pressure to open — not ideal for rapid reloads in competition.

Key attributes

upc	814230010612
manufacturer	Cimarron Firearms
manufacturer part number	MP400
action	Single Action
barrel finish	Blued
barrel length	4.75"
caliber/gauge	.357 Magnum
capacity	6
color	Color Case Hardened
length	13.9000
model	Mod P
product type	Single Action
shipping weight	3.1
sights	Wide Front
sights type	FIXED
units per box	1

Frequently asked questions

Is it compatible with standard .38 Special ammunition?: Yes, the revolver is fully compatible with .38 Special ammunition, which is the recommended cartridge for Cowboy Action Shooting competition due to its lower recoil. The chamber dimensions are cut to the correct SAAMI specifications for both .357 Magnum and .38 Special. You can expect reliable ignition with any commercially available standard or +P .38 Special load, providing you cycle the 8.5-pound hammer with authority.
Does it fit standard 1873-style holsters?: Yes, its external dimensions are faithful to the original 1873 Colt SAA with a 4.75-inch barrel, so it will fit any quality holster designed for that model. The profile, particularly the shape of the trigger guard and the frame at the rear of the cylinder, matches historical blueprints. Expect a snug fit in a new, un-molded holster that will require a break-in period of 10-20 draws to achieve a smooth release.
How long does shipping take to an FFL?: Processing and shipping typically take 2-3 business days from order verification to shipment, with ground transit adding 3-5 additional business days depending on your location. All firearms must ship to a licensed dealer (FFL) for transfer, and your chosen FFL must have provided their current license to Ironclad Armory before your order ships. Expect total lead time from order to pick-up to be 7-10 business days on average.
Can I return it if it doesn't fit my hand?: No, firearms cannot be returned due to fit or preference, as they are serialized items subject to strict federal regulations. Ironclad Armory's return policy is strictly for defects in material or workmanship, which must be reported within 7 days of receiving the firearm at your FFL. For fit concerns, we recommend handling a similar model at a local store or consulting grip dimension diagrams before purchasing.
Does this work with aftermarket grips?: Yes, it accepts most standard one-piece walnut grips designed for the Colt Single Action Army or its Italian replicas. The frame's grip frame is the standard pre-war size, not the slightly larger post-war spec. Any quality grip maker like Eagle Grips or Altamont will list specific fitment for "Colt SAA (Pre-War)" or "Uberti/Cimarron Cattleman," which are direct fits for this model.

Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.