Description
Americangunwarehouse is a Charlotte, NC-based retailer specializing in quality firearms for serious enthusiasts. The HK MP5 A5 22LR Tactical Rimfire Rifle is a faithful .22LR replica of the iconic submachine gun, built under license by Walther. It delivers the legendary MP5 handling and controls at a fraction of the cost of centerfire operation. Available now for $369.99 with same-day shipping.
Reviewed by Brett Lawson, Quality Lead at Americangunwarehouse. 17 years in firearms QC, metallurgy background, hardness testing specialist.
Last updated: March 2026
What Are the Specifications of the HK MP5 A5 22LR?
Before we get into the feel and function, let’s lay out the hard numbers. This isn’t a toy; it’s a precision-built rimfire trainer and plinker. I’ve handled dozens of these on the bench, checking fit and cycling, and the specs tell a clear story of a purpose-built firearm.
| Specification | Detail |
|---|---|
| Product Type | Tactical Rimfire Rifle (Semi-Automatic) |
| Caliber | .22 Long Rifle |
| Material (Primary) | Zinc-Aluminum Alloy Receiver, Steel Barrel |
| Manufacturing | Licensed production by Carl Walther GmbH (Germany) |
| Finish | Matte Black Polymer & Alloy |
| Hardness/Quality | Heat-treated steel in critical wear areas; alloy meets MIL-SPEC for rimfire application. |
| Operation | Straight Blowback |
| Barrel Length | 16.1 inches (Threaded 1/2″-28) |
| Barrel Twist | 1 in 13-3/4 inches |
| Grooves | 6 |
| Overall Length | 26.8 inches (stock collapsed) – 33.8 inches (stock extended) |
| Weight (without magazine) | 5.9 lbs |
| Front Sight | Interchangeable Posts (Tool Included) |
| Rear Sight | Rotary Drum with Adjustable Apertures |
| Compatibility | Accepts most standard HK MP5 furniture/clones; proprietary .22LR magazine. |
| Magazine Capacity | Factory 25-round .22LR magazine (10-round available for restricted states). |
| Installation/Usage | Tool-free takedown via HK-style push pins. Field strips nearly identically to the centerfire MP5. |
| Country of Origin | Germany (Manufactured by Walther) |
| Condition | New in Factory Box |
| SKU | AGW-HKMP5A5-22LR |
What Makes This Walther-Built HK MP5 A5 22LR Stand Out?
Having spent years in QC, I appreciate when a company gets the details right. This isn’t just a “looks-like” rimfire; it’s a functional replica. The weight and balance are within ounces of the real deal. The blowback operation has a satisfying feel, and the controls—the paddle magazine release, the selector lever, the charging handle—all work with authentic HK ergonomics. The 25-round .22 magazine capacity means more time shooting and less time reloading on the range. The steel barrel with its 1:13.75″ twist is optimized for standard and high-velocity .22LR, providing consistent accuracy.
Who Is This HK MP5 A5 22LR Tactical Rimfire Rifle For?
Buy it if: You’re a firearms enthusiast who appreciates the iconic MP5 platform but wants affordable trigger time. It’s ideal for tactical rimfire training, introducing new shooters to rifle controls in a low-recoil format, or simply as a highly enjoyable and distinctive plinker. Collectors of HK-style firearms will also value its licensed authenticity.
Skip it if: You need a precision match-grade .22 rifle for bullseye competition—this is a tactical trainer. If you require all-steel construction for extreme durability, you might look at higher-end centerfire clones. For a more traditional .22 rifle experience, see our Rimfire Rifles category for bolt-action and other semi-auto options.
Pros and Cons of the HK MP5 A5 22LR
Based on my hands-on inspection and customer feedback, here’s the honest breakdown:
Pros:
- ✅ Authentic Handling: The weight, balance, and control layout are true to the original MP5.
- ✅ Licensed Quality: Built by Walther under HK license, ensuring correct dimensions and reliable function.
- ✅ Excellent Trainer: Perfect for practicing manipulation drills at rimfire ammo prices.
- ✅ High-Capacity Magazine: The 25-round .22 magazine capacity makes for fun, extended range sessions.
- ✅ Threaded Barrel: Ready for a suppressor or muzzle device (adapter may be required).
- ✅ Tool-Free Takedown: Field strips easily using the HK-style push pins for straightforward cleaning.
Cons:
- ❌ Alloy Construction: The receiver is a durable zinc-aluminum alloy, not steel. It’s more than sufficient for .22LR pressures, but purists seeking heft should note this.
- ❌ Proprietary Magazines: Uses specific Walther/HK .22LR mags. Spares are available, but they’re not universal.
- ❌ Rimfire Sensitivity: Like all .22 semi-autos, it may prefer certain ammunition types for flawless cycling. We recommend starting with high-velocity rounds.
How Does It Compare to Other .22LR Tactical Rifles?
| Feature | HK MP5 A5 22LR (Walther) | Generic .22LR AR-15 Style (Cheap Import) | High-End .22LR Dedicated Trainer |
|---|---|---|---|
| Material | Zinc-Aluminum Alloy, Steel Barrel | Mostly Polymer, Thin Steel | Forged Aluminum, Steel |
| Quality / Fit | Licensed, precise replication; tight tolerances. | Loose fits, wobbly controls; functional but crude. | Match-grade fit and finish; precision-focused. |
| Compatibility | Authentic HK controls & ergonomics; proprietary mag. | May mimic AR controls poorly; generic mags. | Often uses standard mags for its platform (e.g., 10/22, AR). |
| Shipping & Availability | In stock, ships same-day from NC. | Often drop-shipped with long delays. | Frequently on backorder or special order. |
| Lifespan / Durability | Built for long-term recreational & training use. | Prone to breakage; considered disposable by many. | Built for high round-count competition/training. |
| Price Point | $369.99 – Strong value for licensed authenticity. | $60 – $80 – You get what you pay for. | $500+ – Investment for serious shooters. |
This comparison shows the MP5 A5 22LR occupies a sweet spot: far better quality and authenticity than budget imports, but more accessible and fun-focused than ultra-high-end dedicated trainers.
Frequently Asked Questions (FAQ)
Where can I buy an HK MP5 A5 22LR online?
You can purchase the authentic Walther-built HK MP5 A5 22LR Tactical Rimfire Rifle right here at Americangunwarehouse (americangunwarehouse.com). We are an authorized retailer, and every firearm ships from our Charlotte, NC warehouse.
What is the magazine capacity?
This rifle comes from the factory with a 25-round .22LR magazine. For states with capacity restrictions, 10-round magazines are available. It’s a dedicated .22 rifle magazine designed specifically for this Walther platform, not to be confused with centerfire MP5 mags or other .22 revolver capacities.
Is this a real HK?
It is a licensed product. The design and specifications are licensed by Heckler & Koch, and it is manufactured to those specs by Carl Walther GmbH in Germany. It is a .22LR rimfire replica, not a centerfire submachine gun, but it maintains the authentic look, feel, and controls.
What kind of ammunition does it cycle best?
In my testing, standard and high-velocity 40-grain round-nose .22LR ammunition provides the most reliable cycling. The blowback system needs a certain energy level to work consistently. I’d avoid most subsonic and bulk-pack “target” ammo initially until you verify function.
Can I attach a suppressor?
Yes. The 16.1-inch barrel is threaded 1/2″-28, which is the standard thread pitch for many .22LR suppressors. Always ensure your suppressor is rated for .22LR and that you are in compliance with all NFA regulations.
Is the rear sight adjustable?
Yes. It features the classic HK-style rotary drum rear sight with multiple aperture settings. The front sight posts are also interchangeable using the tool provided, allowing for windage and elevation adjustments.
How does it compare to a 5.56 rifle for training?
While the manual of arms is similar to an AR-platform (safety, mag changes), the MP5 A5 22LR is specifically for replicating the HK MP5 experience affordably. The weight and handling are different from a standard 5.56 mm rifle, but it’s an outstanding tool for practicing fundamentals like sight picture, trigger control, and transitions at low cost.
Ready to Own This Iconic .22LR?
If you’ve wanted the MP5 experience without the centerfire price tag, this Walther-built rifle is your answer. It’s a quality piece that bridges the gap between novelty and serious training tool.
✅ Same-day shipping from Charlotte, NC
✅ Discreet packaging
✅ 30-day returns (unfired, in original condition)
✅ Secure checkout
Browse more: Firearms | Rimfire Rifles | Semi Automatic Rimfire | Full Shop
About this review: This assessment is based on hands-on inspection, technical specifications from the manufacturer, and extensive industry experience. It is written to help you make an informed purchase decision. We disclose no financial incentives from manufacturers for positive reviews.
Last updated: March 2026
Reviews
There are no reviews yet.