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While starting an AR-15 build from scratch is a rewarding experience, sometimes it's preferable to select a complete lower receiver before you begin. Most manufacturers offer AR-15 lowers equipped with mil-spec and aftermarket furniture, controls, and trigger systems - so you can focus on other critical components of your build.
There are two important considerations when choosing a complete lower receiver: your desired fire control group and compatibility with the upper receiver you plan to use. Stocks and pistol grips are relatively simple to install, but trigger units can be slightly more complicated.
For this reason, it's often easier to select a model with your desired FCG already installed before checking that it's a good match for the other parts you've purchased. There are many solid options available in 2024, so to help you decide which is best for you, here are the top 5 complete lower receivers you should consider for your next build.
The STAG 15 Tactical features a Hiperfire RBT trigger system and a Magpul MOE grip, as well as an enhnaced trigger guard. Although it doesn't include a stock, this model does provide a solid foundation upon which to build a lightning fast, super ergonomic AR-pattern pistol or rifle.
Of course, you might favor the classic mil-spec look of the Del-Ton lower instead. It ships with an A2 grip and six-position adjustable stock, making the Del-Ton an ideal candidate for an authentic military rifle clone. This lower is as mil-spec as it gets, so it should fit any mil-spec AR-15 upper.
Aero Precision's complete AR-15 Gen 2 lower receiver offers enhanced durability and features upgraded Magpul furniture. With a crisp single-stage trigger and excellent ergonomics, this is a great choice for those who prefer mil-spec rifles, but are looking to elevate their shooting experience.
Utilizing the same parts as the WORKHORSE AR-15, this lower from Battle Arms includes an enhanced trigger and a B5 Bravo stock. The adjustable pistol grip features a grippy texture that is perfect for tactical applications under adverse conditions.
The core feature of this lower receiver is Franklin Armory's BFSIII binary trigger, which produces a higher rate of fire than a standard mil-spec trigger. Plus, the receiver itself is built extremely tough and is compatible with a wide range of upper receivers, so it's ready for any task you may encounter.
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If none of the above complete lower receivers caught your eye, you can always build your own. We stock tons of upper and lower receiver parts for AR-platform rifles, as well as a handy AR-15 builder board to help you keep track of all those tiny pins and springs.
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