About this product

AR9 80% Lower Fire Safe Marked – 9mm – Billet

Overview

This AR9 80% lower fire/safe marked – 9mm – billet is a precision-machined component for builders who demand proper rollmark clarity and 9mm-specific geometry. Manufactured from a solid billet of 7075-T6 aluminum, this lower is designed for use with standard AR9 upper receivers and Glock-pattern magazines. The fire/safe selector markings are laser engraved for durability and visibility, allowing for a clean, professional build without the need for a serialized receiver. As an 80% lower, it requires final machining of the trigger pocket and fire control group channels before assembly.

Features & Specs

The billet construction of this AR9 80% lower fire/safe marked – 9mm – billet provides additional material in high-stress areas compared to forged lowers. Each unit is cut from a single block of 7075-T6 aluminum, then hardcoat anodized per Mil-A-8625F Type III Class 2 specifications. The fire/safe markings are laser engraved on both sides, with the selector detent channel pre-drilled and tapped. This lower accepts standard AR15 trigger groups and pistol grip configurations.

• Material: 7075-T6 billet aluminum with Type III Class 2 hardcoat anodized finish
• Caliber: 9mm, designed for Glock-pattern magazine compatibility
• Selector markings: Laser engraved fire/safe on both sides, pre-drilled detent channel
• Manufacturer: AR9
• Category: Parts

Who It’s For

This AR9 80% lower fire/safe marked – 9mm – billet is intended for individuals who are legally permitted to manufacture their own firearm components under federal law. It is appropriate for the home builder who has access to a drill press or CNC mill and understands the machining requirements for completing an 80% lower. The 9mm chambering and Glock magazine interface make this lower ideal for pistol caliber carbine builds, competition shooters, or anyone wanting a lightweight, low-recoil platform. Because this is a non-serialized component, it is not subject to the same transfer restrictions as a completed receiver, but the builder must comply with all applicable federal, state, and local laws regarding firearm manufacture and possession.

• Home builders with machining capability for 80% lower completion
• Competition shooters building a 9mm pistol caliber carbine
• Shooters who prefer billet construction over forged for added material thickness

Shipping & FFL

This AR9 80% lower fire/safe marked – 9mm – billet is classified as a non-firearm component per ATF guidelines and does not require transfer through a Federal Firearms License (FFL) holder. It ships directly to your doorstep with no background check or dealer transfer fee required. However, the purchaser bears full responsibility for ensuring compliance with all federal, state, and local laws regarding the manufacture and possession of firearms. Some states and municipalities impose restrictions on 80% lowers or require serialization upon completion. By purchasing this product, you acknowledge that you are legally eligible to own and manufacture a firearm and that you will complete the lower in accordance with all applicable laws. This product is not a finished receiver and may not be assembled into a functional firearm without additional machining.

• No FFL transfer required for this 80% lower
• Ships directly to your shipping address
• Buyer responsible for verifying local laws regarding 80% lower completion