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

About this product

AR9 80% Lower Fire/Safe Marked – 9mm – Billet Overview This AR9 80% lower fire/safe marked – 9mm – billet component is a precision-machined foundation for building a dedicated 9mm pistol or rifle. Designed for the serious builder, this lower receiver is manufactured from solid billet aluminum and features clearly engraved fire/safe markings. The 9mm-specific geometry eliminates the need for magazine adapters or spacers, accepting standard Glock-pattern magazines directly. As an 80% lower, it requires final machining of the fire control cavity, trigger pin holes, and hammer pin holes before assembly, offering the legal latitude of a non-serialized receiver for personal fabrication. Features & Specs Machined from 6061-T6 billet aluminum, this AR9 80% lower fire/safe marked – 9mm – billet receiver is built to exacting tolerances. The fire/safe markings are laser-engraved into the lower receiver body for durability and clarity. All critical dimensions are oversized by approximately 0.005 inches to allow for final finishing to your specifications. The billet construction provides increased material density compared to forged receivers, with a uniform grain structure that resists stress cracking. The lower is compatible with standard AR9 upper receivers, bolt carrier groups, and LPK components designed for 9mm platforms. The pocket depth is pre-machined to 80% completion, with the trigger and hammer pin boss areas left solid for final drilling and reaming. Material: 60