Out of stock
SKU: 169040
UPC: 7427053012102
MPN: LSLSK
The Lead & Steel LLC LSLSK Mil-Spec Lower Mil-Spec compatible rifle lower receiver is engineered to meet or exceed military specifications for AR-platform builds. This component serves as the regulated firearm foundation—the serialized frame into which trigger groups, buffer systems, and stock assemblies are installed. Whether you're a law enforcement armorer, military small arms technician, or civilian builder, a mil-spec lower ensures interoperability with standard military-grade upper receivers and components without modification or fitting.
Built to mil-spec tolerances, the LSLSK lower is machined from premium aluminum alloy and finished to withstand harsh field conditions and repeated cycling. The mil-spec designation guarantees dimensional consistency—magazine well, trigger pocket, hammer pin, and safety selector holes are precisely dimensioned to accept any mil-spec upper assembly without binding or rattle. This standardization is mission-critical: your trigger group, stock tube, and buffer system will function exactly as designed when paired with a compliant upper, ensuring reliability during qualification, deployment, or duty use. The compact dimensions (3 x 0.5 x 4.8 inches) and minimal weight (0.04 lbs) reflect the precision engineering required for a true mil-spec component.
This lower receiver is ideal for gunsmiths, police armories, military supply chains, and experienced builders who demand uncompromising compatibility and performance. Installation requires professional gunsmithing knowledge—the lower must be properly assembled with matched mil-spec components and tested before duty or range use. As the regulated firearm component under federal law, this product ships with appropriate FFL documentation and requires transfer through a licensed dealer. Pair the LSLSK lower with a mil-spec upper receiver, bolt carrier group, and charging handle to complete a fully functional rifle that meets DOD and law enforcement standards for accuracy, durability, and ease of maintenance.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
