80% Lowers is a premier retailer & YOUR source for the best 80 percent lowers, gun parts, 80 frames, etc. Enjoy FAST SHIPPING & SAVE at 80-lower.com today!

Our 80% lowers are in stock and available today. Shop 80 percent lower receivers with Fast Shipping on AR-15, AR-10, & AR-9 80% lowers and more. Browse more!

Shop our selection of 80% AR lowers with and without finishes or safety engravings to complete your AR-15 setup. Free shipping available on select products!

An 80% lower is a receiver blank that is machined as far as you can without legally becoming a frame or receiver and would then require to be transferred to an FFL. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm.

Shop a range of 80% Lowers for your next build. Thunder Tactical includes top brands and finishes at competitive prices.

80 lowers available and shipping fast. Shop our selection of 80 percent lowers and choose from a variety of AR-15, AR-10, & AR-9 lower receivers. Upgrade today!

80% Arms sells AR-15 and .308 80% Lower Receivers, 80% Lower Jigs and other accessories which allow you to legally build a firearm at home in most states.

MAS Defense is an AR-15, AR-10 and Glock parts store. We are committed to providing every customer with Quality Parts at Reasonable Prices! Our foundation is built on excellent customer service, honesty and integrity.

These lower receivers provide a foundation for custom-built 9mm pistols and carbines, offering flexibility and control over the final product. An 80% lower receiver is a partially completed firearm frame that requires additional machining to become a functional firearm.

80% Arms has a great selection of 80 percent lower receivers to complete your AR15. And all our lowers are backed by a lifetime warranty. Start shopping today!