Total Impact Guns stocks complete AR lowers for sale, ready-to-build assemblies that pair a serialized lower receiver with a fitted lower parts kit and stock, all backed by our price-match guarantee and nationwide shipping to your local FFL. Browse the complete lowers below, and if you don't see the exact lower you want, we can usually get it for you.
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FMK Firearms
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A complete AR lower is the foundation of any AR build, and it's the only part the law treats as the actual firearm. Buying it complete means the serialized lower receiver already has the trigger, safety, grip, buffer assembly, and stock installed, so you skip the fiddly parts-kit work and just drop on an upper to finish the rifle. That makes it the easiest way to start a build without committing to a whole gun, since you pick the upper you want later, whether that's a 5.56 carbine, a pistol setup, or something bigger.
Total Impact carries complete lowers from the brands builders trust, and our team can tell you how a given lower pairs with your upper. Once it's built into a working rifle, you can test-fire it on our indoor range. If you'd rather skip the build entirely, browse our complete AR 15 for sale instead.
Complete AR lowers come in a few standard configurations, and the right one depends on the upper you plan to run. The main differences come down to the receiver platform, the stock, and the trigger.
| Type | What it is | Best for |
|---|---|---|
| Mil-spec AR 15 lower | Standard 5.56/.223 lower with mil-spec parts and adjustable stock | Most builds, carbines, first AR |
| AR 10 / LR-308 lower | Larger receiver sized for .308 and 6.5 Creedmoor uppers | Hunting, long-range, big-bore builds |
| Pistol lower | Lower with a pistol buffer tube and brace setup, no stock | AR pistol builds, short-barrel setups |
| Enhanced / billet lower | Upgraded trigger, ambi controls, machined-from-billet receiver | Builders who want a premium feel |
A standard mil-spec AR 15 lower fits the widest range of uppers and is the right starting point for most people. Step up to an enhanced lower for a better trigger and ambidextrous controls, or move to an AR 10 lower if you're building in .308 or 6.5 Creedmoor. Just remember the platform has to match, since an AR 15 upper won't fit an AR 10 lower.
The best complete lower for you comes down to the rifle you're building, not just the price on the receiver. Before you buy, work through these five things:
The easiest way to settle it is to tell us the upper you're running and how you want the rifle set up. Our team builds these every week and will point you to the right lower.
The best complete lower is the one that matches your build and runs clean, but a handful of brands stay popular because builders know they fit right and hold up. Aero Precision, Anderson Manufacturing, and Palmetto State Armory (PSA) lead the pack for fit, fair pricing, and easy parts support.
Our complete lower lineup covers the brands builders ask for most:
If you're chasing a specific receiver or an enhanced lower we don't have on the shelf, just ask, since we can usually source it, along with matching uppers if you want to finish the whole build through us. For the bigger picture on the platform, see our full lineup of AR rifles.
Most complete AR 15 lowers typically sell for $100 to $250, with budget mil-spec lowers near $100 and enhanced or billet lowers running $300 to $500 or more. You're paying for the trigger, the controls, and the machining quality, not just the stripped receiver, so there's a good complete lower at almost every price. Total Impact price-matches every lower, so if you find the same one for less somewhere else, we'll match it.
Buying a complete lower online is simple. Federal law just requires that the serialized lower ship to a licensed dealer for pickup, not straight to your door. Here's how it works with us:
Because the lower is the serialized firearm, it's the only part of your build that has to go through an FFL, while your upper and other parts can ship straight to you. The minimum age for a bare lower receiver can vary by dealer and state, so check with your FFL before you order. We handle transfers both in and out, so we can ship your lower to a dealer near you or receive one you bought elsewhere.
A complete AR 15 lower is a serialized lower receiver that already has the trigger group, safety, grip, buffer assembly, and stock installed. It's a finished lower half that only needs an upper bolted on to become a working rifle.
Yes, the lower receiver is the serialized part the law treats as the actual firearm, whether it's stripped or complete. That's why it has to ship to an FFL for pickup and background check, while the rest of your build parts can ship straight to you.
Most complete AR 15 lowers typically cost between $100 and $250, with budget mil-spec lowers near $100 and enhanced or billet lowers at $300 to $500 or more. Total Impact price-matches any competitor, so you always pay the best price.
Yes, because the lower is the serialized firearm, it must ship to a licensed dealer (FFL) for the transfer and background check. We handle transfers both in and out, so we can send your lower to a dealer near you or receive one you bought elsewhere.
Yes, a rifle or pistol lower can be the base for a short-barrel build, but a registered SBR rifle requires an ATF tax stamp and the right paperwork before you run a barrel under 16 inches with a stock. Talk to us about the legal steps first.
No, AR 15 and AR 10 platforms are different sizes and don't mix. An AR 15 lower only takes AR 15 uppers, and an AR 10 lower takes the larger .308-class uppers, so match the platform before you buy.
Whether you're starting your first AR build or adding another to the safe, Total Impact has the complete lowers, the price-match guarantee, and the range to test-fire your finished rifle. Browse the lineup above, and reach out if you want one we can source for you.
