Start your rifle right with GrabAGun’s Lower Receivers aisle. Choose forged 7075-T6 stripped lowers for budget builds or factory-assembled models loaded with drop-in triggers, ambi safeties, and flared mag wells. Trusted makers such as Aero Precision, Anderson Manufacturing, Spike’s Tactical, and Bravo Company cut to mil-spec tolerances, while billet beauties from CMMG add sculpted style.
Going bigger? AR-10 / LR-308 lowers arrive ready for 6.5 Creedmoor, .308 Win, and other hard-hitting rounds. Finish the foundation with lower parts kits, QD end plates, oversized takedown pins, and your choice of fixed or adjustable buffer tubes—all organized so first-time builders and seasoned armorers breeze through assembly.
Every product page shows crisp photos, weight and FCG-pocket specs, and verified builder reviews so you can compare coatings, engravings, and clearances with confidence. Serialized lowers route through a seamless FFL transfer, while non-serialized parts ship straight to your door. Flexible checkout—including Shoot Now Pay Later!—lets you lock down critical components without delaying the build. Pair your new lower with a caliber-matched upper, add mags or optics in the same cart, and see why shooters nationwide trust GrabAGun for lawful, no-nonsense deals on the parts that turn ideas into rifles.