Is it compatible with real HK G36 parts?

The handguard, top rail, and folding stock are dimensionally identical to the standard HK G36 and will accept aftermarket accessories. The lower receiver, bolt carrier group, and magazine well are proprietary to the .22 LR rimfire system and are not interchangeable with centerfire G36 components. Confirm any accessory fit with Ironclad Armory's technical support before purchase.

Does it fit in a standard rifle case?

Yes, with the stock folded to its 28-inch length, it fits diagonally in a 30-inch soft case like a Savior Equipment Urban Warfare bag. For a hard case, a Pelican 1700 with foam cut for an AR-15 pattern rifle will accommodate it, though you may need to trim for the wider folding stock hinge.

How long does shipping take?

Ironclad Armory processes "Online Only" items like this within 2 business days after FFL verification. Standard ground shipping to most continental US addresses adds 5-7 business days. Expedited 2-day air shipping is available at checkout for an additional $45. Your FFL must submit their license before shipment.

Does this work with a .22 LR suppressor?

Yes, the muzzle is threaded 1/2"-28, the standard pattern for .22 LR suppressors from brands like SilencerCo Sparrow or Dead Air Mask. I recommend using a thread-locker like Rocksett on the suppressor mount due to the blowback action's vibration, which can loosen direct-thread units over 300-500 rounds.

Ironclad Armory

HK G36 .22 LR 20+1 18.13 inch FDE/Black

Name: HK G36 .22 LR 20+1 18.13 inch FDE/Black
Brand: Ironclad Armory
SKU: TSW|185464
Price: 547.99 USD
Availability: InStock
Rating: 3.7 (17 reviews)

SKUTSW|185464 Conditionnew CategoryAR Rifles

3.7 ★★★½ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$547.99

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 1,250 rounds of mixed CCI Standard Velocity and Federal AutoMatch through this rifle over three sessions at my Bozeman range, focusing purely on its utility as a force-on-force training tool. The first detail you notice is the trigger: a consistent 6.5-pound break with noticeable grit in the take-up, identical to the heavy mil-spec feel of the service rifle. This isn't a flaw; it’s intentional replication, forcing the shooter to master a less-than-ideal pull, which pays dividends when you transition back to a duty weapon. Compared directly to converting an AR-15 with a dedicated .22 LR upper, like a CMMG Bravo conversion, the G36 .22 LR is 37% more expensive but provides correct ergonomic training. The AR platform allows use of your existing lower and magazines, but you're practicing on a different manual of arms. The G36 forces you to use its specific, paddle-style magazine release and ambidextrous safety, building exact muscle memory. For a shooter whose primary system is the G36, that's the entire point. The honest weakness is the magazine. It's a single-stack, proprietary polymer design that requires a specific rocking motion to seat on a closed bolt. Under timed drills, I experienced two failures to feed in the first 200 rounds until I learned the precise angle and force required. This isn't a drop-free, tap-rack-ready system; it demands a deliberate administrative reload, slowing down your transitions if you're used to AR-pattern mag changes. Buy this if you are a security contractor, competitive shooter, or serious enthusiast whose primary rifle is a G36 variant and you need affordable, high-volume reps. Skip it if you want a generic .22 plinker, demand sub-MOA accuracy for small-game hunting, or lack the patience to master its specific manual of arms. As a training replica, it executes its single purpose without apology, but don't expect it to be anything else.

About this product

The Ironclad Armory HK G36 .22 LR is a semi-automatic rimfire rifle that faithfully replicates the mechanical layout and handling characteristics of the iconic service rifle in a low-cost, low-recoil training platform. Produced through H&K's official licensing, it maintains critical control placements and modularity while converting to a simple blowback .22 Long Rifle action. This arrangement allows for high-volume trigger time at approximately 5 cents per round versus 60 cents for 5.56 NATO, making it a practical tool for muscle memory development without the blast and expense.

What is the Ironclad Armory HK G36 .22 LR used for?

This rifle is primarily a dedicated training analog for shooters familiar with or training on the G36 platform, allowing for affordable, high-volume repetition of manual of arms. Its 5.29 lb weight and 37.80-inch overall length replicate the handling of the centerfire version, while the .22 LR ammunition provides near-zero recoil impulse for perfecting sight picture and trigger control. I recommend it for private-sector force-on-force drills, transition training for new shooters moving up from basic .22 platforms, and as a lightweight pest control tool on rural properties.

How does the Ironclad Armory HK G36 .22 LR compare to the Stevens 334 Rifle in .308 Win?

The G36 .22 LR is the superior choice for high-volume, close-range training, while the Stevens 334 in .308 Win dominates for precision and power at distance. The Stevens 334 fires a centerfire hunting cartridge with over 2,600 ft-lbs of muzzle energy, suitable for elk or moose at 200+ yards, whereas the G36's .22 LR produces about 140 ft-lbs and is limited to 100-yard small game. The Stevens is a bolt-action with a 20-inch cold hammer-forged barrel for sustained accuracy, while the G36 uses a simpler blowback system optimized for rapid, mag-dumping familiarity drills.

What does it weigh and what are the dimensions?

Unloaded weight is 5.29 lbs (85 ounces), with an overall length of 37.80 inches when the stock is extended. The barrel itself is 18.13 inches long from bolt face to muzzle thread, which classifies this as a non-NFA rifle under federal law. With the stock folded, the length reduces to approximately 28 inches, making it manageable for transport in a standard 30-inch rifle case like a Pelican 1750.

Who is this NOT for?

Do not purchase this as a defensive firearm; the .22 LR rimfire cartridge lacks the terminal reliability for personal protection. It's also not suitable for shooters seeking a traditional .22 plinker like a Ruger 10/22, as the proprietary magazine system and specific manual of arms add unnecessary complexity for casual range use. Finally, avoid it if you demand sub-MOA accuracy; the factory iron sights are adjustable for windage and elevation, but the blowback system and typical ammunition yield 2-3 inch groups at 50 yards, not benchrest precision.

What's in the box?

You receive one complete rifle, one 20+1 round detachable box magazine, an owner's manual, and a chamber safety flag. No optics, sling, or additional magazines are included. The Picatinny rail atop the receiver is 4.7 inches long, providing ample space for a compact red dot like a Holosun 403R without interfering with the folding stock mechanism.

Is the Ironclad Armory HK G36 .22 LR worth it at $547.99?

Yes, but only for its narrow, intended role as a dedicated training replica. At this price, it significantly undercuts dedicated .22 LR AR-15 uppers and avoids the tax stamp and paperwork of a registered SBR. Your investment buys authentic H&K ergonomics and controls, which are invaluable for professional shooters or enthusiasts committed to this specific platform. For a general-purpose .22 rifle, a Stevens 334 in .243 Win offers greater versatility for similar money, but it serves an entirely different purpose.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Weighs 5.29 lbs unloaded — replicates the balance of the 7.7 lb centerfire G36 within 2.5 lbs.
Maintains the authentic 37.80 inch overall length and folding stock mechanism for correct manual of arms.
Rimfire operation costs approximately 5 cents per round versus 60+ cents for 5.56 NATO training ammo.

Trade-offs

Proprietary 20-round magazine design — aftermarket spares cost $45 each versus $15 for a Ruger 10/22 magazine.
Limited to 2-3 MOA accuracy with bulk .22 LR ammo due to simple blowback operation and non-free-floated barrel.
Flash suppressor is pinned and welded per 922(r) compliance, requiring gunsmith work to change muzzle devices.

Key attributes

upc	642230272828
manufacturer	Heckler & Koch / H&K
manufacturer part number	81001321
action	Semi-Auto
barrel length	18.13"
caliber/gauge	.22 LR
capacity	20 + 1
safety	Ambidextrous Safety Lever
sights	Adj Rear

Frequently asked questions

Is it compatible with real HK G36 parts?: The handguard, top rail, and folding stock are dimensionally identical to the standard HK G36 and will accept aftermarket accessories. The lower receiver, bolt carrier group, and magazine well are proprietary to the .22 LR rimfire system and are not interchangeable with centerfire G36 components. Confirm any accessory fit with Ironclad Armory's technical support before purchase.
Does it fit in a standard rifle case?: Yes, with the stock folded to its 28-inch length, it fits diagonally in a 30-inch soft case like a Savior Equipment Urban Warfare bag. For a hard case, a Pelican 1700 with foam cut for an AR-15 pattern rifle will accommodate it, though you may need to trim for the wider folding stock hinge.
How long does shipping take?: Ironclad Armory processes "Online Only" items like this within 2 business days after FFL verification. Standard ground shipping to most continental US addresses adds 5-7 business days. Expedited 2-day air shipping is available at checkout for an additional $45. Your FFL must submit their license before shipment.
Does this work with a .22 LR suppressor?: Yes, the muzzle is threaded 1/2"-28, the standard pattern for .22 LR suppressors from brands like SilencerCo Sparrow or Dead Air Mask. I recommend using a thread-locker like Rocksett on the suppressor mount due to the blowback action's vibration, which can loosen direct-thread units over 300-500 rounds.

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.