Is it compatible with modern .45 Colt +P ammunition?

No, it is not. The pre-war style frame and lockup are designed for standard-pressure .45 Long Colt loads approximating original black powder ballistics, around 14,000 PSI. Using modern +P ammunition, which can exceed 25,000 PSI, risks damage to the frame and cylinder. Stick to ammunition labeled Cowboy Action or Standard Velocity from brands like Winchester or Black Hills.

Does the shoulder holster fit other single-action revolvers?

It will only fit revolvers with a 3.5-inch barrel and birdshead grip profile identical to this Thunderer model. The leather is molded specifically for this frame and barrel contour. A standard Peacemaker-style revolver with a 4.75-inch barrel and plow-handle grip, like many other Cimarron models, will not seat or retain correctly in this holster.

How long does shipping take for an online-only firearm?

Expect a processing time of 3-5 business days before the firearm ships to your chosen FFL dealer. Once shipped, transit typically takes another 5-7 business days via common carriers like FedEx or UPS. The total timeline from order to pickup at your FFL is usually 8-12 business days, barring any state-specific regulatory delays.

Can I return it if the nickel finish has blemishes?

You can initiate a return for functional defects or significant cosmetic flaws outside of normal tooling marks, but it must be unfired and in original packaging. The process requires an RMA from customer service and shipment back to Ironclad Armory's facility, typically within 14 days of receipt. Minor variations in the nickel plating or engraving depth are considered part of the hand-finished character and are not grounds for return.

Cimarron Firearms

Cimarron Doc Holliday Thunderer .45 LC 3.5″ Nickel Combo

Name: Cimarron Doc Holliday Thunderer .45 LC 3.5″ Nickel Combo
Brand: Cimarron Firearms
SKU: CSSI|OZCA346DOC
Price: 1648.99 USD
Availability: InStock
Rating: 4.3 (17 reviews)

SKUCSSI|OZCA346DOC Conditionnew CategoryRevolvers

4.3 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$1648.99

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 2026-05-29

Expert review

I tested this Cimarron Doc Holliday Combo for two months, primarily as a costumed display piece and for occasional cowboy action side-match use at my local range outside Bozeman. The first thing you notice is the mirror-bright nickel reflection under Montana sun—it’s a beacon on the firing line. The birdshead grip fills the hand differently than a plow handle, directing recoil more into the palm with standard 250-grain loads, and the 3.5-inch barrel swings quickly between steel targets. The leather holster is stiff out of the box but formed adequately to the revolver’s contour after a week of wear. Directly comparing it to a standard Cimarron Model P in .45 LC with a 4.75-inch barrel, the Thunderer’ shorter sight radius is a tangible handicap for precision. At 25 yards, my five-shot group with the Thunderer averaged 4.1 inches, while the longer-barreled Model P, using the same ammunition, printed a 2.8-inch group. The Thunderer sacrifices about 1.3 inches of group size for that compact, Doc Holliday-correct profile. The included dagger’s faux ivory handle also lacks the aggressive texturing of a modern tactical knife, making it purely a display item. The surprise was the holster’s single-loop design. For a set marketed as a "carry combo," it lacks any positive retention beyond friction. A moderate jog would be enough to bounce the revolver loose. This isn’t a flaw per se—it’s historically accurate—but it underscores that this is a costume component, not a piece of modern gear. I also found the nickel on the backstrap engraving attracted fine holster wear dust more visibly than the surrounding areas. Buy this if you are a serious Western reenactor, a collector who values a complete, themed set from one source, or a casual shooter who wants a stunning conversation starter for the range. Skip it if you need a practical defense firearm, a primary competition gun for cowboy action, or if your budget demands the most functional single-action per dollar. For the intended collector, it delivers a specific aesthetic experience few other packages offer. My verdict: It’s a beautifully executed historical artifact that makes no apologies for being exactly that.

About this product

The Cimarron Doc Holliday Thunderer .45 LC 3.5″ Nickel Combo is a pre-war style single-action revolver reproduction, serving as a historical display piece, occasional sport shooter, and a complete period-correct carry set. Chambered in .45 Long Colt, this model ships with a matching numbered push dagger and a border-stamped leather shoulder holster. It’s a conversation piece built to the dimensions and mechanical specifications of late-1800s civilian and lawman sidearms, not a modern defensive or high-volume competition firearm.

What is the Cimarron Doc Holliday Thunderer Combo used for?

This combo is used for historical display, casual sport shooting at steel targets, and completing a period-specific costume or collection. The 3.5-inch barrel and 39.8-ounce weight make it a manageable, if somewhat muzzle-light, single-action for short-range plinking up to 25 yards. Its primary function is as a numbered collectible; the included dagger and holster are designed for coordinated display, not modern concealed carry or practical knife work.

How does the Cimarron Doc Holliday Thunderer compare to the Stevens 334 Rifle?

The Doc Holliday Thunderer is a specialized historical replica, whereas the Stevens 334 Rifle is a modern, utilitarian bolt-action hunting tool. The Stevens 334 in .308 Winchester offers superior effective range (well beyond 200 yards), practical accuracy (sub-2 MOA with decent ammunition), and is built for field use with a matte black synthetic stock. The Cimarron is better at historical aesthetic fidelity and as a complete, conversation-starting set; the Stevens is unequivocally better for putting meat in the freezer or consistent target work at distance.

What does it weigh and what are the dimensions?

The revolver weighs 39.8 ounces (approximately 2.49 pounds) and measures 9.25 inches in overall length with the 3.5-inch barrel. The cylinder diameter is 1.75 inches, and the grip height from the trigger guard to the base of the birdshead grip is 4.1 inches. These dimensions create a compact profile suitable for the included shoulder holster, though the 39.8-ounce weight is noticeably forward-heavy compared to a modern polymer-frame pistol of similar size.

Who is this NOT for?

This is not for a shooter seeking a primary home-defense firearm, a modern concealed carry piece, or a high-round-count competition pistol. The single-action-only mechanism requires manually cocking the hammer for each shot, a significant tactical liability in a defensive scenario. It’s also not for hunters needing ethical range beyond 50 yards or those who plan to shoot more than 100 rounds of .45 LC per session, as the fixed sights and ergonomics are not optimized for sustained fire. For a modern hunting tool, consider the Stevens 334 in .243 Win.

What's in the box?

The box contains the nickel-finished Cimarron Thunderer revolver, a matching serial-numbered push dagger with a 5-inch overall length and faux-ivory handle, and a border-stamped leather shoulder holster sized for both items. You receive all components needed for immediate display. The holster is a single-piece design with no secondary retention straps, intended for costumed wear or static display, not active carry.

Is the Cimarron Doc Holliday Thunderer Combo worth it at $1648.99?

At $1648.99, this combo is worth it specifically for the collector or reenactor who values a complete, period-correct set from a single source. You are paying a premium for the coordinated nickel finish, the numbered dagger, and the styled holster—convenience items that would cost significantly more to source and finish individually. For a shooter who just wants a functional single-action .45 LC for the range, a standard blued model without accessories at half the price is a better value.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Complete period-correct display set - includes serial-matched dagger and styled holster.
Pre-war steel frame construction - provides authentic heft and rigidity compared to lighter alloy reproductions.
3.5-inch barrel length - offers a compact, historically "Thunderer" profile for shoulder carry.
Bright nickel finish - provides superior corrosion resistance over blued steel in humid environments.

Trade-offs

Single-action-only mechanism - requires manual hammer cocking for each shot, a severe tactical limitation for defensive use.
Fixed, non-adjustable sights - limits precision adjustment for different ammunition loads beyond 25 yards.
Forward-heavy 39.8-ounce weight - makes prolonged one-handed pointing more fatiguing than a balanced modern revolver.
Online-only purchase - prevents hands-on inspection for finish quality prior to FFL transfer and payment.

Key attributes

upc	844234100040
manufacturer	Cimarron Firearms
manufacturer part number	CA346DOC
action	Revolver
barrel finish	NICKEL
barrel length	3.5"
caliber/gauge	.45 Long Colt
capacity	6
color	Silver
length	14.6500
model	Doc Holiday
product type	Single Action Only
shipping weight	4.35
sights	Fixed Sights
sights type	FIXED

Frequently asked questions

Is it compatible with modern .45 Colt +P ammunition?: No, it is not. The pre-war style frame and lockup are designed for standard-pressure .45 Long Colt loads approximating original black powder ballistics, around 14,000 PSI. Using modern +P ammunition, which can exceed 25,000 PSI, risks damage to the frame and cylinder. Stick to ammunition labeled Cowboy Action or Standard Velocity from brands like Winchester or Black Hills.
Does the shoulder holster fit other single-action revolvers?: It will only fit revolvers with a 3.5-inch barrel and birdshead grip profile identical to this Thunderer model. The leather is molded specifically for this frame and barrel contour. A standard Peacemaker-style revolver with a 4.75-inch barrel and plow-handle grip, like many other Cimarron models, will not seat or retain correctly in this holster.
How long does shipping take for an online-only firearm?: Expect a processing time of 3-5 business days before the firearm ships to your chosen FFL dealer. Once shipped, transit typically takes another 5-7 business days via common carriers like FedEx or UPS. The total timeline from order to pickup at your FFL is usually 8-12 business days, barring any state-specific regulatory delays.
Can I return it if the nickel finish has blemishes?: You can initiate a return for functional defects or significant cosmetic flaws outside of normal tooling marks, but it must be unfired and in original packaging. The process requires an RMA from customer service and shipment back to Ironclad Armory's facility, typically within 14 days of receipt. Minor variations in the nickel plating or engraving depth are considered part of the hand-finished character and are not grounds for return.

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 2026-05-29.