Identifying your specific Smith & Wesson M&P15 model can be crucial for finding parts, accessories, and understanding its capabilities. Unlike some firearms with readily apparent model markings, the M&P15 series utilizes a system that requires a bit more detective work. This guide will walk you through the process of identifying your exact M&P15 model, covering various methods and key areas to examine.
Understanding Smith & Wesson M&P15 Nomenclature
Smith & Wesson doesn't always use a straightforward naming convention for their M&P15 rifles. Often, the model is subtly indicated through a combination of features, markings, and barrel length. There isn't a single, universal serial number decoder that definitively reveals the model. Instead, you'll need to piece together information from various sources.
Where to Find Identifying Information on Your M&P15
The most reliable information will be found on the firearm itself. Check these areas:
1. The Receiver
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Roll Markings: The upper and lower receivers are the primary places to look for markings. These roll marks may include the model name (though often abbreviated or absent), caliber, and sometimes a serial number prefix hinting at the year of manufacture or a specific production run. Look carefully on both sides and the top of the receiver. Even small, faint markings are significant.
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Serial Number: While the serial number itself doesn't directly reveal the model, it can be used in conjunction with Smith & Wesson's customer service or through online resources (with caution, as some unofficial sources may be inaccurate).
2. The Barrel
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Barrel Length: The barrel length significantly impacts the rifle's characteristics and is a key identifier. Common lengths include 16", 18", and 20". This is typically marked on the barrel itself near the receiver.
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Gas System Length: The gas system (length and type, e.g., carbine-length, mid-length) is another important differentiator, usually marked on the barrel or sometimes the gas block.
3. The Stock and Other Components
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Handguard/Rail System: The type of handguard (M-LOK, KeyMod, or a standard quad rail) and manufacturer often provide clues, particularly when combined with other markings. Check for any manufacturer logos or markings on the handguard itself.
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Stock Type and Manufacturer: The type of stock (collapsible, fixed, etc.) and its manufacturer can be helpful in narrowing down the possibilities.
4. Original Documentation
If you still have the original paperwork that came with your rifle, it will undoubtedly state the model.
Utilizing Online Resources (Use With Caution)
While online forums and resources can offer assistance, treat information from unofficial sources with a healthy dose of skepticism. Always confirm information against markings on your actual firearm.
Contacting Smith & Wesson Customer Service
If you're having difficulty identifying your model after checking all the above, contacting Smith & Wesson's customer service directly is your best bet. Provide them with the serial number, and they should be able to provide you with the most accurate information about your specific firearm.
Conclusion
Identifying your M&P15 model might require a bit of detective work, but by carefully examining your firearm and utilizing the resources mentioned above, you'll be able to pinpoint its exact designation. Remember, accuracy is key, especially when it comes to firearm parts and accessories. Always verify information against the markings on your weapon.
