Ever wondered how long is an MP5 in real life? The MP5 with a fixed stock measures 27 inches (680 mm) end to end. This guide covers its length, weight, and size next to common objects and other weapons.
MP5 Length Quick Conversion
| Model / Configuration | Length (mm) | Length (in) |
|---|---|---|
| MP5, fixed stock | 680 mm | 27 in |
| MP5, telescoping stock extended | 700 mm | 27.6 in |
| MP5, telescoping stock collapsed | 550 mm | 21.7 in |
| MP5K | 325 mm | 12.8 in |
| MP5 barrel | 225 mm | 8.9 in |
| MP5K barrel | 115 mm | 4.5 in |
Quick tip: Lengths are overall lengths and vary by stock position and variant. To convert millimeters to inches, divide by 25.4. To convert inches to centimetres, multiply by 2.54.
Quick Reference List of MP5 Sizes
| Category | Details |
|---|---|
| Full-Size Length | Overall length, barrel length |
| Variants & Stock Length | MP5 with telescoping stock, MP5K |
| Comparisons With Everyday Objects | Tennis racket, skateboard, baseball bat, yardstick |
| Comparisons With Other Weapons | AK-47, M4 Carbine |
| Weight & Capacity | Unloaded weight, standard 30-round magazine |
| Cartridge Size | 9x19mm bullet diameter, case length, overall length |
Full-Size MP5 Length and Overall Dimensions
The standard MP5 with a fixed stock is the “full-size” version most people mean.
MP5 Overall Length (Fixed Stock)
The fixed-stock MP5 has an overall length of 27 inches (680 mm). That figure is measured from the butt of the stock to the muzzle.
Exact numbers can shift a little by maker and production year, so treat the MP5 length as an approximate value. Most published sources list it at 27 inches for the fixed-stock model.
MP5 Barrel Length
The standard MP5 barrel is 8.9 inches (225 mm) long. That is about one-third of the MP5’s total length.
One-third of the MP5’s 27 inches would be 9 inches, so the barrel is just under that. This ratio helps explain how big an MP5 looks in photos.
MP5 Length in CM and MM
The MP5 measures 68 cm or 680 mm from end to end. As a decimal, that equals 0.68 meters.
Multiply the MP5’s 27 inches by 2.54 to check the math, and you get 68.58 cm, which rounds to the sourced 680 mm figure. Use this MP5 length in cm for any metric listing. The barrel measures 22.5 cm or 225 mm.
MP5 Variants and Their Lengths
Not every MP5 is the same length, so here is how the main variants compare.
MP5 with Telescoping Stock
With a telescoping stock, the MP5 measures 27.6 inches (700 mm) extended and 21.7 inches (550 mm) collapsed.
That is only 0.6 inches longer than the fixed-stock MP5 when extended, but 5.3 inches shorter than the fixed-stock MP5 when collapsed. Collapsing the stock cuts its length by 5.9 inches from its extended length, which is why the telescoping stock is useful where a compact weapon is needed.
MP5K
The MP5K is the compact variant, and it measures 12.8 inches (325 mm) overall, with a barrel length of 4.5 inches (115 mm). It weighs 4.41 pounds (2.00 kilograms).
That makes the MP5K less than half the length of the fixed-stock MP5: 14.2 inches shorter overall, with a barrel 4.4 inches shorter. The MP5K is the short version in every dimension supplied here: shorter overall, shorter barrel, and lighter.
MP5 Length Compared With Everyday Objects
Familiar objects make 27 inches easy to picture.
Tennis Racket
A tennis racket is about 27 inches long. That is almost exactly the MP5’s length.
Set a tennis racket beside the MP5’s 27 inches, and the two match to the nearest inch. This is one of the closest everyday size matches for the MP5. With the telescoping stock extended at 27.6 inches, the MP5 is about 0.6 inches longer than a tennis racket. With the stock collapsed at 21.7 inches, it is about 5.3 inches shorter.
Standard Skateboard
A standard skateboard is about 31 inches long, which is about 4 inches longer than the MP5’s 27 inches.
The MP5 is shorter than a skateboard at every stock position: by about 4 inches with a fixed stock, by about 3.4 inches with the telescoping stock extended, and by about 9.3 inches with the stock collapsed. The skateboard is a useful longer reference point.
Louisville Slugger Adult Baseball Bat
A Louisville Slugger adult baseball bat is commonly sold in a 34-inch length. That is 7 inches longer than the MP5’s 27 inches.
Hold a Louisville Slugger bat beside the MP5, and the bat is clearly longer. The bat is a handy comparison because it is a long, narrow object, like the MP5, but a full 7 inches longer.
Standard Yardstick
A standard yardstick measures 36 inches, which is 9 inches longer than the MP5’s 27 inches. The yardstick is a handy tool for checking this length.
Hold a yardstick and subtract 9 inches to find how long an MP5 is. You can also mark 27 inches on the stick with a pencil.
MP5 Length Compared With Other Weapons
Side-by-side sizes show where the MP5 sits among well-known weapons.
MP5 vs AK-47 Length
The AK-47 measures about 34.3 inches (870 mm), which is roughly 7.3 inches longer than the MP5.
The AK-47’s 34.3 inches versus the MP5’s 27 inches is a gap of about 27 percent. Placed side by side, the MP5 length looks noticeably shorter than the AK-47.
MP5 vs M4 Carbine Length
The M4 Carbine measures 33 inches (838 mm) with the stock extended, which is 6 inches longer than the MP5. With the stock retracted, the M4 Carbine measures 29.75 inches (756 mm), still about 2.75 inches longer than the fixed-stock MP5.
An M4 Carbine is about 22 percent longer than the MP5’s 27 inches with the stock extended. Placed side by side, the MP5 looks noticeably shorter than the M4 Carbine.
MP5 Weight and Magazine Size
Weight and capacity round out the picture of how big an MP5 is.
How Much Does an MP5 Weigh?
An MP5 weighs 2.54 kg (5.6 pounds). The compact MP5K weighs 2.00 kg (4.41 pounds), which is 1.19 pounds less than the standard MP5.
For comparison, a gallon of milk weighs about 8.6 pounds, so the MP5 weighs a good deal less than a full gallon. That gives you a quick feel for how heavy an MP5 is.
Standard Magazine Capacity
The standard MP5 magazine holds 30 rounds of 9x19mm ammunition.
A 30-round capacity is a simple fact for size comparisons, since the magazine adds to the MP5’s overall bulk. Magazine sizes vary, so check any specific model before measuring.
9x19mm Cartridge Size (Measurement Facts)
The cartridge is often the next size question people ask.
9x19mm Bullet Diameter
The 9x19mm cartridge’s bullet is 9.02 mm (.355 inches) wide. The “9” in the name is a nominal figure, close to the exact bullet width.
A 9.02 mm bullet is slightly wider than a standard pencil, which is roughly 7 mm. Check the published specs for any particular cartridge, since sizes vary slightly by maker.
9x19mm Case and Overall Length
The 9x19mm cartridge case is 19.15 mm (0.754 inches) long. The complete cartridge, bullet included, is 29.69 mm (1.169 inches) long.
A US quarter is 0.955 inches wide, so the 9x19mm case is a little under one quarter wide in length. The full cartridge is a little over one inch long.
FAQs About MP5 Length
How long is an MP5?
An MP5 with a fixed stock is 27 inches (680 mm) long.
How long is an MP5 in cm?
An MP5 is 68 centimeters long, or 680 millimeters. Multiply inches by 2.54 to convert.
How long is an MP5 barrel?
The standard MP5 barrel is 8.9 inches (225 mm). The MP5K barrel is 4.5 inches (115 mm).
How much does an MP5 weigh?
An MP5 weighs 5.6 pounds (2.54 kg). The MP5K weighs 4.41 pounds (2.00 kg).
How long is an MP5 with a telescoping stock?
With a telescoping stock, an MP5 is 27.6 inches (700 mm) extended and 21.7 inches (550 mm) collapsed.
How long is an MP5K?
The MP5K is 12.8 inches (325 mm) long, with a 4.5-inch (115 mm) barrel.
Conclusion
Now you know how long an MP5 is, 27 inches or 68 cm with a fixed stock. Compared with a tennis racket, a skateboard, a baseball bat, or other weapons, the size is easy to picture. Remember that length shifts slightly by model, maker, and stock type.
Related Guides
- How Long Is an HK416 Rifle? — https://measuredimension.com/how-long-is-an-hk416-rifle/
- How Long Is an FN SCAR Rifle? — https://measuredimension.com/how-long-is-an-fn-scar-rifle/
- How Long Is an AK-47? — https://measuredimension.com/length-ak-47/
- How Long Is a Glock 17? — https://measuredimension.com/how-long-is-a-glock-17/
Hi, I’m Michael Carter, I write simple, everyday size guides so you can picture any measurement in seconds.
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