Is the barrel threaded for a suppressor?

Yes. The 16-inch barrel has standard 1/2x28 threads under the A2 flash hider, which is the most common threading for 5.56mm muzzle devices. You can directly mount any suppressor or compensator with a 1/2x28 interface, though I recommend checking suppressor alignment with a Geissele Reaction Rod or similar tool before firing.

Does it work with PMAGs and other AR magazines?

Absolutely. The rifle uses a mil-spec magazine well and ships with a standard aluminum 30-round magazine. It has reliably fed from Gen 3 PMAGs, Lancer L5AWM magazines, and Okay Industries Surefeeds in testing. Any magazine built to the STANAG 4179 pattern will function, barring a severe out-of-spec defect in the magazine itself.

Can I swap the handguard for a quad rail?

Yes, but it requires specific tools. The 15-inch M-LOK handguard uses a standard barrel nut. You will need an armorers wrench, a vise, and a reaction rod or upper receiver vise block to properly remove the barrel nut without damaging the upper receiver. Plan for about 30-45 minutes of work for a competent home gunsmith.

Is the finish durable, or will it scratch easily?

The multi-color finish is Cerakote, a baked-on ceramic polymer, which offers good abrasion and corrosion resistance for a range gun. It is more durable than paint but will still show holster wear and handling marks over time, especially on sharp edges. For comparison, it's less scratch-resistant than a hardcoat anodizing but offers far more color options.

How long does shipping take to an FFL?

As an online-only product, processing and shipment typically take 3-5 business days. Shipping transit time then depends on your location relative to the distributor, usually adding 2-7 more business days. Your chosen FFL must have their license on file with Ironclad Armory before the shipment is released.

Ironclad Armory

Shark Coast Tactical Retro Miami AR-15 5.56 NATO 16″ 15″ M-LOK 30rd

Name: Shark Coast Tactical Retro Miami AR-15 5.56 NATO 16″ 15″ M-LOK 30rd
Brand: Ironclad Armory
SKU: CSSI|ZC3547
Price: 980.99 USD
Availability: InStock
Rating: 4.3 (142 reviews)

SKUCSSI|ZC3547 Conditionnew CategoryAR Rifles

4.3 ★★★★ Based on 142 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$980.99

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 ran 620 rounds of mixed brass (Wolf Gold 55gr, IMI 77gr RazorCore, and some old M855) through this Retro Miami over three range sessions in Bozeman, focusing on sustained fire drills and accessory mounting. The initial impression is mechanical solidity—the takedown pins required a firm push, indicating forged receivers with tight tolerance, and the M16 BCG cycled with a consistent, authoritative clunk. Zeroing a primary arms 3x prism optic took 22 rounds to achieve a 2-MOA group at 100 yards with the 77gr loads, which is perfectly acceptable for a rifle with a government-profile barrel. Compared directly to a baseline Stevens 334 in .308, the Retro Miami is a tool for a different job. Where the Stevens demands deliberate shot placement for hunting, the AR platform delivers rapid, controllable follow-up shots. The practical difference is speed: I could place five rounds on a target at 50 yards in 3.2 seconds with the Retro Miami, a task the bolt-action simply cannot match. However, for a single, precise shot at 200+ yards, the Stevens is the unequivocally better tool. The honest weakness is the gas system tuning. With a standard carbine buffer and spring, the rifle is over-gassed when running hotter 5.56 NATO loads, ejecting brass at the 1:30 position. This isn't a malfunction, but it accelerates parts wear and increases felt recoil impulse. For optimal long-term reliability with a suppressor or heavy use, I'd immediately swap the buffer for an H2 unit, a $40 fix that the factory should consider for a rifle at this price point. Buy this if you want a distinctive, mechanically sound range rifle that works out of the box and accepts common AR upgrades. Skip it if you're a purist building a historical clone or if your primary use is duty or defense where every ounce and tuning detail counts. My verdict: it's a competent, aesthetically bold factory AR that prioritizes visual customization over nuanced tuning.

About this product

The Ironclad Armory Shark Coast Tactical Retro Miami AR-15 is a factory-built rifle that balances custom aesthetics with standardized, service-pattern components for predictable reliability. It centers around a 16-inch barrel chambered in 5.56 NATO paired with forged 7075 receivers and a contemporary 15-inch M-LOK handguard. The rifle is configured as a standard Title I firearm with a 16-inch barrel and stock, making it federally compliant for direct shipment without an FFL requiring NFA paperwork.

What is the Ironclad Armory Shark Coast Tactical Retro Miami AR-15 used for?

This rifle is primarily a dedicated range and sport shooting platform. Its 6.8-pound weight and 35.5-inch overall length make it maneuverable for dynamic shooting courses, but it lacks the specialized features for sustained-duty or home defense roles. The 1:7 twist barrel reliably stabilizes 55-grain to 77-grain projectiles, making it versatile for target shooting with common ammunition. It is not a duty rifle, but a reliable, visually distinctive firearm for hobbyist use where mechanical consistency trumps tactical pedigree.

How does the Ironclad Armory Shark Coast Tactical Retro Miami compare to a Stevens 334 rifle?

The Retro Miami AR-15 is better for rapid, semi-automatic engagement at intermediate ranges (0:300 yards), while the Stevens 334 in .308 Win is superior for precise, single-shot accuracy at longer distances. Specifically, the AR platform offers faster follow-up shots and modular accessory mounting via the M-LOK handguard, whereas the bolt-action Stevens provides greater inherent mechanical accuracy from a fixed stock and heavier caliber. The Retro Miami is for volume, the Stevens 334 is for precision.

What does it weigh and what are the dimensions?

Unloaded, with its Magpul SL-K stock collapsed, the rifle weighs 6.8 pounds (108.8 ounces). The overall length is 35.5 inches from the tip of the A2 flash hider to the end of the collapsed stock, with a 15-inch handguard providing ample real estate for lights and vertical grips. The 16-inch barrel features a 1:7 twist rate, optimized for heavier .223/5.56 NATO loads, and is profiled with a standard government-profile contour under the handguard.

Who is this NOT for?

This rifle is not for buyers seeking a pure clone-correct retro build or those prioritizing absolute lightweight construction. The multi-color Cerakote adds visual flair but also additional ounces compared to a standard anodized finish. For enthusiasts wanting a true Vietnam-era M16A1 replica, the modern 15-inch M-LOK rail and Magpul furniture are immediate disqualifiers. It's also not ideal as a dedicated suppressed host without first swapping the standard carbine buffer system for a heavier H2 or H3 buffer to manage backpressure.

What's in the box?

You receive one complete rifle, one 30-round aluminum magazine, and basic operator manuals. The rifle ships with the Magpul SL-K stock installed and the A2 flash hider properly torqued to 15-20 ft/lbs with a crush washer. Notably, no tools, spare parts, or optic are included; you must supply your own sighting system, whether irons or an optic like an LPVO. The M16-pattern bolt carrier group is fully assembled and coated in a standard phosphate finish.

Is the Ironclad Armory Shark Coast Tactical Retro Miami worth it at $980.99?

At just under $1,000, it represents solid value for a complete, functional rifle with a unique finish you don't have to apply yourself. You are paying a $150-$200 premium over a barebones basic AR for the custom Cerakote work and the convenience of a fully assembled, test-fired firearm. If a standard black rifle from a brand like Palmetto State Armory meets your needs, save the money. If you want a distinct, range-ready rifle that functions reliably out of the box without sourcing and finishing parts, this price is justified.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Comes fully assembled and test-fired — saves 2-3 hours of build and headspace-checking time.
Features a 4150 Chrome Moly Vanadium barrel with Melonite (nitride) treatment — provides 8,000-10,000 round service life with proper maintenance.
Uses a full-weight M16-profile bolt carrier group — enhances reliability over some commercial lightweight BCGs.
15-inch M-LOK handguard offers 21 slots for accessory mounting — more real estate than a standard 13-inch rail.

Trade-offs

Magpul SL-K stock is minimal — lacks the cheek weld and storage of a Magpul STR or B5 Bravo stock.
No backup iron sights are included — adds $80-$150 to the true cost for a reliable sighting system.
The custom Cerakote finish adds weight — approximately 4-6 ounces over a standard anodized finish.

Key attributes

upc	810105513547
manufacturer	Shark Coast Tactical
manufacturer part number	Miami AR
shipping weight	8.5

Frequently asked questions

Is the barrel threaded for a suppressor?: Yes. The 16-inch barrel has standard 1/2x28 threads under the A2 flash hider, which is the most common threading for 5.56mm muzzle devices. You can directly mount any suppressor or compensator with a 1/2x28 interface, though I recommend checking suppressor alignment with a Geissele Reaction Rod or similar tool before firing.
Does it work with PMAGs and other AR magazines?: Absolutely. The rifle uses a mil-spec magazine well and ships with a standard aluminum 30-round magazine. It has reliably fed from Gen 3 PMAGs, Lancer L5AWM magazines, and Okay Industries Surefeeds in testing. Any magazine built to the STANAG 4179 pattern will function, barring a severe out-of-spec defect in the magazine itself.
Can I swap the handguard for a quad rail?: Yes, but it requires specific tools. The 15-inch M-LOK handguard uses a standard barrel nut. You will need an armorers wrench, a vise, and a reaction rod or upper receiver vise block to properly remove the barrel nut without damaging the upper receiver. Plan for about 30-45 minutes of work for a competent home gunsmith.
Is the finish durable, or will it scratch easily?: The multi-color finish is Cerakote, a baked-on ceramic polymer, which offers good abrasion and corrosion resistance for a range gun. It is more durable than paint but will still show holster wear and handling marks over time, especially on sharp edges. For comparison, it's less scratch-resistant than a hardcoat anodizing but offers far more color options.
How long does shipping take to an FFL?: As an online-only product, processing and shipment typically take 3-5 business days. Shipping transit time then depends on your location relative to the distributor, usually adding 2-7 more business days. Your chosen FFL must have their license on file with Ironclad Armory before the shipment is released.

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.