PWS MK1 MOD 1-M PRO Complete Lower – 5.56 / Multi
Elevate your AR-15 build with the Primary Weapons Systems MK1 MOD 1-M PRO Complete Lower—a premium mil-spec platform designed for shooters who demand rugged reliability and smooth performance. This factory-assembled lower blends top-tier engineering with combat-ready functionality, offering a streamlined solution for builders, upgraders, and professionals alike.
Forged from 7075-T6 aluminum, the MK1 MOD 1-M PRO delivers uncompromising strength without added bulk. Every component, from the fluted buffer tube to the Bravo Company USA furniture, is selected for comfort, control, and customization. Whether you’re assembling a precision shooter or refining your home defense setup, this lower lays a rock-solid foundation that’s ready to perform under pressure.
Forged 7075-T6 Aluminum ConstructionAerospace-grade material for maximum durability, corrosion resistance, and longevity.
Enhanced Mil-Spec TriggerPTFE-coated with a 5.5–6.5 lb pull weight for consistent and smooth engagement on every shot.
PWS Fluted Buffer Tube + Ratchet Lock Castle NutStreamlined design improves aesthetics and strength while maintaining secure assembly with zero wobble.
QD End PlateQuick-detach sling mounting point for rapid deployment and tactical flexibility.
Bravo Company USA Stock and GripErgonomic control and comfort with proven, field-tested furniture components.
Hardcoat Anodized FinishProtection against wear, impact, and the elements.
Specifications
- Material: 7075-T6 Forged Aluminum
- Finish: Hardcoat Anodized
- Compatibility: AR-15 Platform
- Trigger Type: Mil-Spec Enhanced, PTFE-Coated
- Trigger Pull Weight: 5.5 – 6.5 lbs
- Buffer Tube: PWS Enhanced, Fluted
- Buffer Type: PWS H2 Steel Body
- Castle Nut: Ratchet Lock System
- Sling Mounting: QD End Plate
- Grip & Stock: Bravo Company USA
- Caliber: Multi-Caliber (.223 Rem / 5.56 NATO)
- Weight: 2 lbs. 4 oz.
- Color: Black
- Trigger Pin Diameter: MIL-SPEC .154″










