Sig M17 Vs M18: 5 Key Differences To Know

The world of firearms is constantly evolving, with new models and designs being introduced to the market every year. Two of the most popular pistols in recent years are the Sig Sauer M17 and M18. Both pistols were designed for the US military's Modular Handgun System (MHS) competition, with the M17 being the full-size version and the M18 being the compact version. While they share many similarities, there are also some key differences between the two pistols. In this article, we will explore the 5 key differences between the Sig M17 and M18.

What is the Sig M17?

The Sig M17 is a full-size, semi-automatic pistol designed for the US military's MHS competition. It is chambered in 9x19mm Parabellum and features a 4.7-inch barrel. The M17 has a striker-fired design and a modular frame that can be easily customized to fit different hand sizes.

What is the Sig M18?

The Sig M18 is a compact version of the M17, also designed for the MHS competition. It is also chambered in 9x19mm Parabellum and features a 3.9-inch barrel. The M18 has the same striker-fired design and modular frame as the M17, but is smaller and lighter.

Difference 1: Size and Weight

One of the most obvious differences between the Sig M17 and M18 is their size and weight. The M17 has a 4.7-inch barrel and weighs approximately 29.6 ounces, while the M18 has a 3.9-inch barrel and weighs approximately 26.4 ounces. The M17 is also slightly longer and taller than the M18, making it a better fit for larger hands.

Key Takeaway:

If you have smaller hands or prefer a more compact pistol, the M18 may be the better choice. However, if you prefer a full-size pistol with a longer barrel, the M17 may be the better option.

Difference 2: Magazine Capacity

Another difference between the Sig M17 and M18 is their magazine capacity. The M17 has a standard 17-round magazine, while the M18 has a standard 15-round magazine. However, both pistols can accept larger magazines, with the M17 accepting up to 21-round magazines and the M18 accepting up to 19-round magazines.

Key Takeaway:

If you need a pistol with a higher magazine capacity, the M17 may be the better choice. However, if you prefer a more compact pistol with a still-reasonable magazine capacity, the M18 may be the better option.

Difference 3: Trigger Pull

Both the Sig M17 and M18 have a striker-fired design with a similar trigger pull. However, the M17 has a slightly longer trigger pull distance and a slightly heavier trigger pull weight. The M17's trigger pull distance is approximately 6.5 mm, while the M18's trigger pull distance is approximately 5.5 mm.

Key Takeaway:

If you prefer a pistol with a shorter trigger pull distance, the M18 may be the better choice. However, if you prefer a pistol with a slightly longer trigger pull distance and a more deliberate trigger pull, the M17 may be the better option.

Difference 4: Accessories and Customization

Both the Sig M17 and M18 have a modular design that allows for easy customization and accessory installation. However, the M17 has a slightly larger frame that allows for more accessory options, such as larger optics and flashlights.

Key Takeaway:

If you plan on installing a lot of accessories on your pistol, the M17 may be the better choice. However, if you prefer a more compact pistol with still-plenty of accessory options, the M18 may be the better option.

Difference 5: Price

Finally, the price of the Sig M17 and M18 can vary depending on the location and retailer. However, in general, the M17 tends to be slightly more expensive than the M18.

Key Takeaway:

If you're on a budget and want a high-quality pistol at a lower price point, the M18 may be the better choice. However, if you're willing to pay a bit more for a full-size pistol with a longer barrel, the M17 may be the better option.

Sig M17 and M18 Image Gallery

What is the difference between the Sig M17 and M18?

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The Sig M17 and M18 are both pistols designed for the US military's MHS competition. The main differences between the two pistols are their size, weight, magazine capacity, trigger pull, and price.

Which pistol is better for concealed carry?

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The Sig M18 is a better choice for concealed carry due to its smaller size and lighter weight.

Can the Sig M17 and M18 be customized?

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Yes, both the Sig M17 and M18 have a modular design that allows for easy customization and accessory installation.

We hope this article has helped you understand the key differences between the Sig M17 and M18. Both pistols are high-quality options for anyone looking for a reliable and accurate firearm. However, the M17 may be a better choice for those who prefer a full-size pistol with a longer barrel, while the M18 may be a better choice for those who prefer a more compact pistol with a smaller size and lighter weight.