How Long is an AR-15? Understanding AR-15 Rifle Length Variations
The length of an AR-15 isn't a one-size-fits-all answer. Its overall length significantly depends on several factors, making it crucial to understand the variables influencing its dimensions. This comprehensive guide will clarify the different lengths and what contributes to them.
Key Factors Determining AR-15 Length
Several components directly impact the overall length of an AR-15 rifle:
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Barrel Length: This is the most significant factor. AR-15 barrels commonly range from 7.5 inches to 20 inches, with some variations outside this range. Shorter barrels mean a shorter overall rifle length, while longer barrels result in a longer rifle.
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Gas System Length: The gas system's length influences the position of the gas block and the overall balance of the rifle. Common gas system lengths include carbine-length and mid-length, with carbine-length systems generally found in shorter AR-15s.
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Handguard/Rail Length: The handguard or rail system protects the barrel and provides mounting points for accessories. Longer handguards naturally add to the rifle's overall length. Some AR-15s feature a handguard that extends almost to the end of the barrel, while others are significantly shorter.
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Stock Length: The stock is adjustable on many AR-15s, allowing users to customize the length of pull (the distance from the trigger to the shooter's shoulder). A collapsed stock results in a shorter rifle, while an extended stock increases the overall length. Fixed stocks contribute to a more consistent length.
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Buffer Tube Length: While not directly visible, the buffer tube's length impacts the overall length, especially when combined with the stock. Standard buffer tubes are usually 6-positions adjustable.
Typical AR-15 Length Ranges
Based on the factors above, here's a general idea of the length ranges you might encounter:
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Short-Barreled AR-15s (SBRs): These rifles typically have barrel lengths under 16 inches and overall lengths under 26 inches. Note: Owning an SBR requires special licensing and compliance with federal and state regulations.
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Standard AR-15s: With barrel lengths in the 16-20 inch range, these typically measure between 31 and 36 inches in overall length.
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Longer-Barreled AR-15s: While less common for general use, AR-15s with barrels exceeding 20 inches can easily exceed 36 inches in total length.
Measuring Your AR-15
To accurately measure your AR-15's length, you should measure it from the end of the muzzle to the end of the buttstock with the stock fully extended. Remember to account for any accessories that might add to the overall length.
Conclusion
The length of an AR-15 is highly variable. Understanding the influence of barrel length, gas system, handguard, stock, and buffer tube is crucial for making an informed choice when purchasing or customizing an AR-15. Always refer to the manufacturer's specifications for precise dimensions of a specific model. Remember to always follow all applicable local, state, and federal laws regarding firearm ownership and usage.
