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Different AR-15 Rail Types: A Comprehensive Guide
When it comes to the AR-15 platform, one of the most customizable aspects is the rail system. The rail, also known as the handguard, is the component that runs along the top of the firearm and provides a mounting point for various accessories. In this article, we will delve into the different types of AR-15 rails available, their features, and how they can enhance your shooting experience.
1. Standard M4 Handguard
The standard M4 handguard is the most common type of rail found on AR-15s. It is designed to be lightweight and provide a comfortable grip. The M4 handguard typically features a 6-position telescoping design, allowing shooters to adjust the length of the handguard to their preference. This type of rail is compatible with most Picatinny rail-mounted accessories, such as scopes, lights, and lasers.
2. Keymod Handguard
The Keymod handguard is a newer design that has gained popularity among shooters. It features a modular system that allows users to attach accessories using Keymod slots. These slots are designed to accept various types of mounts, such as the Keymod QD mount, which allows for quick detachment and attachment of accessories. The Keymod handguard is also available in various lengths and materials, including aluminum and polymer.
3. M-LOK Handguard
The M-LOK handguard is another modular option that has become increasingly popular. Similar to the Keymod, the M-LOK system uses slots to attach accessories. However, M-LOK slots are slightly larger than Keymod slots, which means they can accommodate a wider range of mounts. M-LOK handguards are also available in various lengths and materials, making them a versatile choice for shooters.
4. Free-Float Handguard
A free-float handguard is designed to remove the handguard from the barrel, allowing for better accuracy and consistency. This type of handguard is typically made from lightweight materials, such as aluminum or carbon fiber, and features a Picatinny rail along its length. Free-float handguards are ideal for long-range shooting and competitive shooting events, where accuracy is crucial.
5. Riser Handguard
A riser handguard is a specialized type of handguard that is designed to elevate the barrel above the handguard. This design is often used in conjunction with optics that require a higher mounting point, such as a red dot sight or a scope with a high mount. Riser handguards are available in various lengths and materials, and they can be a great addition to your AR-15 for enhanced ergonomics and accuracy.
6. Angled Handguard
An angled handguard is designed to provide a more comfortable grip and reduce the risk of hand fatigue. This type of handguard features a 20-degree or 30-degree angle, which allows shooters to hold the firearm in a more natural position. Angled handguards are available in various materials and lengths, and they can be a great choice for shooters who spend extended periods of time at the range or in the field.
7. Pistol Grip Handguard
A pistol grip handguard is a unique design that combines the features of a handguard and a pistol grip. This type of handguard is ideal for shooters who prefer a more compact firearm or who want to reduce the weight of their AR-15. Pistol grip handguards are available in various materials and lengths, and they can be a great choice for concealed carry or for those who want to reduce the overall weight of their firearm.
Table: Comparison of Different AR-15 Rail Types
| Handguard Type | Material | Modularity | Length | Compatibility |
|---|---|---|---|---|
| Standard M4 | Aluminum | No | 6-position telescoping | Most Picatinny accessories |
| Keymod | Aluminum/Polymer | Yes | Varies | Keymod-compatible accessories |
| M-LOK | Aluminum/Polymer
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