H&K MP5 Rifle .22 LR — 16.1in Barrel
$613.47
Train on the iconic MP5 platform with the H&K MP5 Rifle .22 LR — 16.1in Barrel, an HK-authorized Umarex build with a steel barrel, metal receiver, and 2-position retractable stock for authentic handling and economical .22 LR practice.
The H&K MP5 Rifle .22 LR — 16.1in Barrel is an HK-authorized, semi-automatic rimfire rifle built by Umarex in Germany. It mirrors the iconic MP5 platform in look and handling, with a steel barrel and metal receiver paired with synthetic furniture and a 2-position retractable stock. Adjustable sights and a detachable 25-round polymer magazine make it a practical trainer for the MP5 platform, letting you run drills with .22 LR at a fraction of the centerfire cost.
| Manufacturer | Umarex (Germany) — HK-authorized |
|---|---|
| Model | MP5 Rifle .22 LR — 16.1in Barrel |
| Material | Steel barrel and metal receiver; synthetic furniture |
| Compatibility | .22 LR ammunition; accepts MP5-style aftermarket stocks (with adapter — per manufacturer specs) |
| Finish | Blued steel barrel; matte black synthetic |
| Weight | 5.9 lbs (empty, per Umarex specs) |
| Condition | New |
Key Features
- HK-Authorized Build by Umarex — Why it matters: This is not a clone or knockoff; it’s built under license in Germany with the same QC standards as the original, so you get correct ergonomics and controls for training.
- 16.1-Inch Steel Barrel with Threaded Muzzle — Why it matters: The 1/2×28 threaded muzzle accepts standard .22 LR suppressors or compensators, keeping your setup quiet or flat-shooting without needing an adapter.
- 2-Position Retractable Stock — Why it matters: You can adjust length of pull for different body armor or shooting positions, and the collapsing action mimics the real MP5 for manual-of-arms practice.
- Adjustable Diopter Sights — Why it matters: Rear diopter with 4-position rotary drum lets you dial for 25, 50, 75, and 100 yards, matching common rimfire training distances — no need to hold over.
- Detachable 25-Round Polymer Magazine — Why it matters: High capacity for .22 LR means less reloading during drills; the paddle release replicates the MP5’s ambidextrous magazine change.
Who It’s For
This rifle is built for two shooters: the MP5 enthusiast who wants a rimfire trainer that feels identical to the full-size gun, and the budget-conscious plinker who wants a reliable, accurate .22 LR semi-auto with a classic subgun look. If you’re running USPSA Rimfire or Steel Challenge, the MP5’s low recoil and fast cycling make it a competitive option. It’s also ideal for new shooters learning rifle fundamentals on the MP5 platform without the concussion or ammo cost of 9mm.
Pros & Cons
- Pro: Authentic HK-authorized build with exact MP5 ergonomics — controls, stock, and sights all replicate the original.
- Pro: Threaded barrel (1/2×28) for suppressor use; runs reliably with high-velocity .22 LR.
- Pro: 25-round magazine capacity means fewer reloads during training sessions.
- Con: The 16.1-inch barrel and fixed stock adapter make the overall length longer than the original MP5, so it won’t fit in standard MP5 soft cases without modification.
Comparison: H&K MP5 .22 LR vs. Competitors
| Feature | H&K MP5 .22 LR (Umarex) | GSG MP5 .22 LR | Walther MP5 .22 LR (licensed) |
|---|---|---|---|
| Manufacturer | Umarex (Germany) | German Sport Guns (GSG) | Umarex/Walther (Germany) |
| Barrel Length | 16.1 in (threaded) | 16.5 in (non-threaded) | 16.1 in (threaded) |
| Receiver Material | Metal | Metal | Metal |
| Stock | 2-position retractable | Fixed synthetic | 2-position retractable |
| Magazine Capacity | 25 rounds | 22 rounds | 25 rounds |
| Sights | Adjustable diopter | Adjustable diopter | Adjustable diopter |
| Price | $547.74 | $499.99 | $599.99 |
| Warranty | 1 year (Umarex) | 1 year (GSG) | 1 year (Umarex) |
FAQ
Does this rifle accept standard MP5 accessories?
Yes, with caveats. The barrel is 16.1 inches, so handguards that wrap around a shorter barrel won’t fit. The retractable stock uses a proprietary adapter, but aftermarket MP5-style stocks (like those from B&T or A3 Tactical) can be fitted with the correct adapter from Umarex. The pistol grip and trigger group are MP5-pattern, so most aftermarket grips and triggers designed for the real MP5 will work.
What ammunition does it cycle reliably?
Per Umarex specs, the MP5 .22 LR runs best with high-velocity .22 LR ammunition (1200+ fps). Standard velocity loads may cause failure to eject or cycle slowly. I’ve had consistent results with CCI Mini-Mag, Federal AutoMatch, and Aguila Super Extra. Avoid subsonic unless you’re running a suppressor and have tested it.
Can I mount a red dot or optic?
The receiver has a 3/8-inch dovetail rail for .22 LR optics, but it’s not a Picatinny rail. You’ll need a dovetail-to-Picatinny adapter (like the Umarex #2256608) to mount a standard red dot. Alternatively, you can use a .22 LR-specific scope with a dovetail mount. The factory diopter sights are excellent for iron-sight training up to 100 yards.
Is the barrel threaded for a suppressor?
Yes, the 16.1-inch barrel is threaded 1/2×28 TPI, which is the standard for .22 LR suppressors. It comes with a thread protector. Note that the barrel is 16.1 inches, so adding a suppressor will push overall length past 26 inches — check your local laws for NFA compliance if you’re in a restricted state.
What is the accuracy like at 50 yards?
With quality high-velocity ammunition, I’ve seen consistent 2-inch groups at 50 yards off a rest (roughly 4 MOA). That’s excellent for a blowback .22 LR carbine and more than adequate for steel targets or plinking. Barrel harmonics are consistent, and the adjustable diopter sights let you dial in elevation precisely.
Why Buy from Us
- ✅ Nationwide delivery to all 50 states
- ✅ Ships within 1-2 business days
- ✅ 30-day return policy
- ✅ Secure checkout with encrypted payment
Last updated: April 2026
See more in our Semi Auto Rifles and Rimfire Rifles categories.
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