The Best AR-15 Lowers For Your Next 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.
STAG 15 Tactical Complete Lower W/ Hiperfire RBT Trigger
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.
Stag Arms STAG 15 Tactical Complete Lower Receiver with Hiperfire RBT Trigger - No Stock - STAG15200121L
Del-Ton AR-15 / M4 Complete Lower
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.
Del-Ton AR-15 M4 Complete Lower Receiver, Buttstock - LR102T
Aero Precision AR-15 Complete Lower Receiver W/ SL Carbine Stock
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.
Aero Precision AR15 Complete Lower Receiver with MOE Grip & SL Carbine Stock - Anodized Black - APAR501194
Battle Arms WORKHORSE Complete Lower W/ B5 Bravo Stock
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.
Battle Arms Development Workhorse Complete Lower Receiver 223 Rem/5.56 NATO Semi-Auto Pistol Caliber Multi B5 Stock
Franklin Armory BFSIII M4 Complete Lower
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.
Franklin Armory - BFSIII M4 - Complete AR-15 Lower, M4 Stock, A2 Pistol Grip, 30 Rd Mag, Binary Trigger Factory Installed, Black Anodized Finish, - 00-20016-BLK
Build Your Own Lower Receiver
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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