SDM m870

Gun description

SDM M870 – A familiar pump-action shotgun in an affordable package

Introduction: A legend from the East

The SDM M870 is a Chinese pump-action shotgun based on the licensed (or more accurately, replicated) design of the famous Remington 870. It offers a classic tube magazine system, easy handling, and the advantage of a low purchase price. Although it is a weapon manufactured in the East, it has earned the respect of shooters thanks to its functionality, robustness, and compatibility with a wide range of accessories.

History of the SDM M870: A clone that has proven itself

SDM (Sino Defense Manufacturing) is best known for producing copies of proven weapons, such as the AR-15, AKM, and Remington 870. The M870 model is manufactured in several variants, from hunting to tactical with a pistol grip, M-LOK handguard, or folding stock.

The weapon was primarily intended for the domestic Chinese market, but later began to be exported to Europe. In the Czech Republic, the SDM M870 is a popular choice for defense purposes, recreational shooting, and dynamic shotgun disciplines.

Practical use of the SDM M870: Simplicity that works

Home defense

The M870 in its basic or pistol configuration is ideal for property defense – intuitive handling, powerful shot effect, and the ability to use different ammunition (rubber bullets, slugs, breaching) make this weapon a versatile tool.

Training and hobby shooting

Low price and easy maintenance make the SDM M870 an excellent choice for beginners, sport shooters, or defense courses. The weapon is mechanically reliable and adaptable.

Tactical use and conversions

Thanks to its Remington 870-compatible design, the SDM M870 can be fitted with American stocks, flashlights, rails, or muzzle devices – the shooting community often modifies it to suit their own needs.

Advantages and disadvantages

Advantages

• Low price – excellent price/performance ratio
• Robust mechanics – basic but functional and durable
• Full compatibility with Remington 870 accessories
• Easy to use – suitable even for beginners
• Various versions available on the market (Fixed Stock, Pistol Grip, Tactical)
• Can be fired with 12/70 and 12/76 Magnum cartridges

Disadvantages

• Rougher workmanship than the original Remington
• Poorer finish (requires maintenance, prone to corrosion)
• Heavier and rougher pump action
• No manufacturer service (DIY repairs or replacement parts)
• Slight deviations in dimensions – some accessories need to be modified

Cultural significance of the SDM M870: The poorer but functional brother of the classic

Although you will never see the SDM M870 in a Hollywood movie or in the hands of special forces, it is well known in the civilian shooting community as the "low-cost 870". Shooters appreciate that they get a fully functional weapon with the possibility of tuning and replacing parts at an affordable price. In the sport shotgun shooting community in Czechia, it is one of the most affordable entry-level weapons for disciplines such as IPSC Shotgun or defensive shooting.

It is a tool, not a piece of jewelry – but that is exactly the role it fulfills.

Interesting fact: Some SDM M870 models sold in the EU come with a tactical stock similar to the Magpul SGA – although it is a Chinese copy, the fit is often surprisingly accurate. Shooters can thus use plug-and-play parts without the need for a gunsmith.

Frequently asked questions (FAQ)

Is the SDM M870 compatible with Remington 870 parts?

Yes, most components such as the stock, fore-end, magazine tube, and sights are compatible. However, some parts may require minor adjustments due to manufacturing tolerances.

Is the gun suitable for inexperienced shooters?

Yes, the pump system is simple and intuitive. However, training in the correct use of the pump is recommended to prevent "short-stroke" malfunctions.

How does the quality compare to Remington?

Remington has finer workmanship and a longer service life. The SDM M870 is a rougher but functional copy – a cheaper alternative with a lower standard of detail.

Can the SDM M870 be used with rubber ammunition?

Yes, as long as the ammunition matches the caliber and chamber length. The 12/76 shotgun can also handle less lethal ammunition.

Where can I buy this gun?

In the Czech Republic, it is offered by several distributors in the C category (with registration), or in hunting or sporting versions.

Conclusion

The SDM M870 is a simple, affordable, and functional shotgun that does exactly what you expect it to do. It is not a top-of-the-line product with a smooth trigger and perfect finish, but it is a practical tool that works and can be customized to the shooter's needs. If you are looking for your first shotgun for defense, sport, or training and do not want to invest in an American classic, the SDM M870 is more than just a substitute solution—it is a solid foundation.