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No AR build is complete without a buttstock and buffer kit. This one comes with exactly what you need, in a classic mil-spec configuration that’s simple, affordable, and guaranteed to work with all standard AR-15 builds. Use our instructional guide to assemble this lower build kit! Classic Lower Parts Kit This Classic LPK features a…
A pistol-specific lower build kit (no brace included) Keep your AR pistol build as simple and affordable as possible with this no-brace AR-15 lower build kit. It includes a “naked” buffer tube, so you can run it slick, or grab your choice of pistol brace later. Classic Lower Parts Kit This Classic LPK features a…
Classic AR-15 pistol lower build kit, with the O.G. brace. This AR-15 pistol lower build kit provides the original adjustable SBA3 pistol brace. With all mil-spec components, this build kit ensures your lower receiver assembly is functional and reliable. Classic Lower Parts Kit This Classic LPK features a mil-spec hammer and trigger, with standard pins…
“AR-10 or LR-308? I want to build one, but don’t know which I have or the parts I need.” This might be the most common issue there is when it comes to building one’s own .308 calibered AR-style rifle. Well, relax. We’ve taken away the guesswork, the need for questions, the whole cloud of confusion….
Includes every part required for your AR’s lower, minus the stripped lower itself.
The classic black rifle is split into two primary parts: The AR15 upper assembly, and the AR15 lower assembly. Our mil-spec AR15 lower assembly options include everything you need to turn a box of parts into a range-ready rifle in a single day. All our AR15 lower assembly parts are compatible with our available AR-15 uppers and 80% lower receiver units! All our lower assembly parts are mil-spec to guarantee compatibility with other retail AR-15 parts.
Need help? Here’s how to install your lower assembly kit.
In each lower assembly or parts kit, you’ll find a quality, single-stage trigger. Every trigger is made to break cleanly and reliably, with little take-up, over-travel, or creep. Builders who want to upgrade their lower assembly or parts kits should take a look at the new RA LE145 drop-in trigger! It’s compatible with all our lower assemblies and parts kits and makes for a major, affordable upgrade for your AR-15 rifle or pistol.
Contrary to federal law, some states have either restricted or banned the sale, transfer, and ownership of 80% lowers, firearm blanks, and other gun parts. Because of these restrictions, we cannot ship our products to certain states. Please confirm whether your state is restricted on our Shipping & Return Policy before placing an order. We cannot fulfill orders to restricted states if placed.
DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At GunBuilders.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.
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