Ke Arms Ke-9 Billet Complete Lower Receiver W/ Trigger & Mag Catch 9mm
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KE Arms
Overview
The KE Arms LLC KE-9 Billet Complete Lower Receiver is designed specifically for the 9mm caliber, making it a perfect foundation for an AR-9 build. This complete lower features a durable polymer construction and a hardcoat anodized finish, ensuring both reliability and resistance to wear. It includes a trigger and magazine catch, streamlining the assembly process for builders looking to create a blowback-operated 9mm platform.
Specifications
Build history on GunPartPicker
Builders have been adding the Ke Arms Ke-9 Billet Complete Lower Receiver W/ Trigger & Mag Catch 9mm to their builds on GunPartPicker since April 2026. All time, it ranks #207 of the 1,037 lower receivers builders have added.
It was hard to find in September 2026, in stock on only 5 of the 21 days we checked, and today only Sportsmans Outdoor Superstore has it in stock. It dipped to $399 at Sportsmans Outdoor Superstore for a stretch in September 2026, well under its usual $639.95, so sales do come around. Buying today, the lowest price is $399 at Sportsmans Outdoor Superstore, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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