Here are my recommendations to the three best 9mm AR lowers on the market today:įoxTrot Mike Products AR-15 FM-9 Billet Stripped Lower ReceiverĪs a stripped lower receiver (other than the installed magazine release and bolt release), the FoxTrot Mike Products AR-15 FM-9 Billet Stripped Lower Receiver is ready to be customized out of the box.
That being said, not all AR9 lower receives will accept all aftermarket Glock magazines either, so keep this in mind. When choosing a lower receiver, think ahead in regards to what kind of magazines you’ll be using.īoth Colt and Glock style magazines work, but the Glock magazines are definitely cheaper, more available, and have more aftermarket options. 9mm Magazine CompatibilityĪR9s can be separated into two primary camps: those that accept Glock-style 9mm magazines, and those that accept Colt SMG 9mm style magazines. Additional options include parkerizing, stainless steel, or nickel boron, or even coatings like Cerakote or Duracoat. One of the best choices for a rust-resistant finish is a hard coat anodized finish. If your lower is ever exposed to rain, snow, or humidity, a rust-resistant finish is absolutely crucial. Rust Resistant Finishĭurability is very important in a lower receiver to ensure longevity, but equally important is ensuring you have rust and corrosion-resistant finish coated over that receive. Many metal-framed pistols, such as the Beretta 92FS, make use of aluminum frames for the same reasons. Not only is aluminum very durable, but it’s also very lightweight. One of the best kinds of materials to look for is forged aircraft-grade 7075 aluminum. The first feature to look at in a lower receiver is durability. Here are the top qualities to look for in a 9mm AR lower: Durability Δ Qualities To Look For In A 9mm AR Lower Receivers
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