MK1 Mod 2-M Complete Pistol Lower Receiver
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Primary Weapon Systems
Overview
The Mk1 Mod 2-M Complete Pistol Lower Receiver from Primary Weapon Systems is a fully assembled lower receiver designed for the AR-15 platform, offering the versatility to accommodate multiple calibers. Its ambidextrous controls enhance user accessibility, making it suitable for both left- and right-handed shooters. This lower receiver is commonly found in builds that prioritize flexibility and ease of use, catering to a wide range of shooting preferences.
Specifications
September 2026 on GunPartPicker
Primary Weapon Systems MK1 Mod 2-M Complete Pistol Lower Receiver ranked #248 of the 477 lower receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since May 2026. All time, it ranks #455 of the 1,054 lower receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $549.95 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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