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Primary Weapons Systems MK1 MOD 1-M PRO AR-15 Complete Pistol Lower w/ SBA3 Brace

AR-15 Complete Lower Receiver

Out of stock

FFL Required Before Shipping.
Please have your dealer email a copy of their FFL to [email protected] or fax it to 253-218-2998, referencing your name and order number.



  • Lower: Multi-Caliber Lower, T6 7075 Forged, Anodized, AR-15 Compatible
  • Trigger: Mil-Spec Enhanced, PTFE Coated, 
  • Trigger Pull Weight: 5.5 – 6.5 lbs.
  • Buffer Tube: PWS patented Enhanced Buffer Tube with 6-position settings, ratchet lock castle nut and end plate set with built-in QD mount
  • Buffer: PWS Enhanced H2 Steel Body Buffer
  • Furniture: SB Tactical SBA3™, Bravo Company USA® Pistol Grip
  • Length (Collapsed): 15.0” (Extended): 18.5”
  • Height: 7.5”
  • Width: 1.25”
  • Weight: 2 lbs. 4 oz.
More Information
SKU 20-M100PM1B
Product Type AR-15 Complete Lower Receiver
Manufacturer Primary Weapon Systems
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