Skip to main content

FPM GUNWORKS: YOUR NEXT FAVORITE SUPPRESSOR. 

Best 5.7 Suppressor – Ouch Mouse Review & Comparison

Best 5.7 Suppressor of 2025 – Ouch Mouse Review & Comparison

When choosing a 5.7 suppressor, most shooters are looking for three things:

  1. Compact overall length

  2. Lightweight design

  3. Strong suppression performance

The Ouch Mouse checks all three boxes. Built from premium 17-4 stainless steel and engineered specifically around 5.7x28, it stands out as one of the most compact and durable 5.7 suppressors available today.

Whether you’re running a 5.7 bolt gun, varmint rifle, or lightweight carbine, the Ouch Mouse delivers impressive suppression in a small, rugged package.

Why the Ouch Mouse Is One of the Best Suppressors for 5.7x28

1. Compact 5-inch length
Many suppressors for 5.7 are too long or bulky for a small-caliber rifle. The Ouch Mouse is only 5.0 inches long, which keeps your rifle short, handy, and easy to maneuver in the field, in vehicles, or around obstacles.

2. Lightweight 7.1 oz build
Adding too much weight to a 5.7 rifle can throw off the balance. At only 7.1 ounces, the Ouch Mouse keeps the front end light and fast, making it ideal for rifles that get carried more than they sit on a bench.

3. Built from 17-4 stainless steel
The Ouch Mouse is machined from 17-4 stainless steel, a material known for:

  • High heat resistance

  • Excellent strength

  • Corrosion resistance

  • Long service life under hard use

This makes it a great choice for shooters who want a 5.7 suppressor they can run and not baby.

4. Full-auto rated for 5.7
The Ouch Mouse is full-auto rated for 5.7x28, giving you plenty of confidence on high-volume or rapid-fire setups.

For .223/5.56, it is bolt-gun rated only, which makes it perfect for small precision rifles and varmint bolt guns in that caliber.

5. Alpha thread pattern with 1/2x28 direct thread
The Ouch Mouse uses the industry-standard Alpha thread pattern and comes with a 1/2x28 direct-thread mount. This covers the most common muzzle thread pattern used on 5.7 and many .22-caliber bolt-action and carbine platforms.

Ouch Mouse – Quick Specs

  • Length: 5.0" (without mount)

  • Weight: 7.1 oz

  • Outside Diameter: 1.2345"

  • Material: 17-4 stainless steel

  • Thread Pattern: Alpha

  • Included Mount: 1/2x28 direct thread

  • Ratings:
    • 5.7x28 – full-auto rated
    • .223/5.56 – bolt-action rated only

How the Ouch Mouse Compares to Typical 5.7 Suppressors

Feature Ouch Mouse Typical Competitor
Length 5.0" 6–7"
Weight 7.1 oz 10–18 oz
Material 17-4 SS Aluminum / 416 SS
5.7 Rating Full auto Often semi-auto only
Outside Diameter 1.2345" 1.5"–1.6"

The Ouch Mouse consistently beats many competing 5.7 suppressors in length, weight, and durability, while still offering excellent suppression performance for its size.

Best Use Cases for a 5.7 Suppressor Like the Ouch Mouse

  • Varmint and predator hunting

  • Compact truck guns and ranch rifles

  • Lightweight bolt-action builds

  • Small-caliber precision rigs

  • Training and plinking carbines in 5.7x28

Its compact length and low weight make it ideal for rifles that are carried all day or used in tight spaces.

Frequently Asked Questions About 5.7 Suppressors

What is the best suppressor for 5.7x28?
The Ouch Mouse is one of the top options for 5.7x28 shooters thanks to its compact size, 17-4 stainless construction, and full-auto rating for 5.7.

Does a 5.7 suppressor need to be rated for higher pressure?
Yes. 5.7 runs notably higher pressure than rimfire rounds like .22 LR. The Ouch Mouse is built from 17-4 stainless steel and is designed to handle these pressure levels, including full-auto use on 5.7.

What thread pitch does 5.7 usually use?
Many 5.7 carbines and bolt guns use 1/2x28 threads. The Ouch Mouse ships with a 1/2x28 direct-thread mount and uses the Alpha thread pattern for compatibility with other mounts.

Is the Ouch Mouse quiet on 5.7?
For its compact 5-inch size, the Ouch Mouse delivers excellent suppression on 5.7x28 while maintaining good balance and minimal added length on the rifle.

Conclusion: Why the Ouch Mouse Earns a Spot Among the Best 5.7 Suppressors

If you are looking for a compact, durable, and efficient 5.7 suppressor, the Ouch Mouse stands out with its 5-inch length, 7.1 oz weight, and 17-4 stainless construction. It is purpose-built for 5.7x28 and small .22-caliber bolt guns, making it a strong choice for hunters, ranchers, and precision shooters alike.

View the full Ouch Mouse product page and specifications here:
https://fpmgunworks.com/ouch-mouse/

!