M-LOK: This newest rail system features a series of uniform slots instead of keyholes and is considered to be the strongest and most secure way to mount accessories.Īdding a new handguard and rail system gives you access to a world of new accessories for your AR-15.Attachments are inserted into the larger end of the slot and slid forward to lock in. KeyMod: This rail system employs a negative space attachment design with a series of key-shaped holes machined into its surface.Since it's the oldest type of system, there are many compatible accessories available. Picatinny: The 'Pic rail' features a sawtooth design that locks accessories in place.Currently available rail systems include: Additional rail sections can be attached to the guard via adapters. The rail system itself is typically an integral part of the handguard. Free float: A free float rail system attaches to the receiver and surrounds the barrel without touching it, leaving the barrel free of impingement and optimizing performance.You can mount some accessories on it, though it's not the most rigid due to its simple installation method. It's quick to install without any modifications to your gun. Drop-In: This rail system is the base, entry-level upgrade option.Each system offers unique features, and you'll want to learn about the pros and cons to be sure you choose the right one for your personal firearm.īeyond the typical plastic clamshells from the factory, handguards will typically fall into these two categories: Types of Rail SystemsĪs you browse our inventory of aftermarket rail systems, you'll see that there are several handguard and rail combinations to choose from. At Wing Tactical, we carry a wide range of aftermarket rail systems so you can upgrade your firearms whenever you please.

Once in place, these systems allow users to customize their AR-15 to meet their exact needs. Stock AR-15s feature a full-length, plastic handguard, but for many shooters, an aftermarket rail system is the key to unlocking the most potential from their firearms.Īftermarket rail systems are modular in design, making them quick and easy to install. The AR-15 has been around for more than five decades, but it's more than just a gun - it's a unique, multifaceted platform with a modular design allowing for endless configurations, upgrades and customization. AR-10 / LR-308 Complete Upper Receiver Assemblies.

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