Primary Weapon Systems MK1 Mod 2 Complete Pistol AR-15 Lower Receiver
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Primary Weapon Systems
Overview
The Primary Weapon Systems Mk1 Mod 2 Complete Pistol AR-15 Lower Receiver is a stripped lower designed specifically for the AR-15 platform, crafted from durable 7075-T6 aluminum and finished with a hardcoat anodized treatment to enhance its resilience against wear and corrosion. Its trigger pin diameter of .154 ensures compatibility with a wide range of aftermarket triggers, allowing builders to customize their setup to suit their shooting style. This lower receiver is often chosen for builds that prioritize a lightweight and robust foundation for both tactical and recreational use.
Specifications
Primary Weapon Systems MK1 Mod 2 Complete Pistol AR-15 Lower Receiver
Build history on GunPartPicker
Builders on GunPartPicker first added the Primary Weapon Systems MK1 Mod 2 Complete Pistol AR-15 Lower Receiver to a build in August 2026.
Today the one retailer we track is out of stock. Listed prices start at $629.95 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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