SOLGW M4-89 5.56 NATO Pinned & Welded 13.7" Rifle

SKU M4-89-13.7-5.56NATO-BLK
UPC 800000100352
in Stock
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Unleash precision and power with the SOLGW M4-89 5.56 NATO Pinned & Welded 13.7" Rifle, designed for those who demand reliability in the toughest conditions. Engineered with superior craftsmanship and built to exceed standards, this rifle ensures exceptional performance whether on the range or in the field.


  • Pinned & Welded Barrel: 13.7" barrel with a pinned and welded muzzle device to meet legal length requirements.
  • Mid-Length Gas System: Ensures smooth operation and reduced recoil for better control.
  • 7075-T6 Aluminum Receivers: Durable, lightweight construction for enhanced reliability and performance.
  • Sons of Liberty Gun Works Liberty Fighting Trigger: Provides a consistent 5.5 lb pull for precise shooting.
  • M89 Drive Lock Rail System: Offers a secure and versatile platform for mounting accessories.


  • Barrel: Sons of Liberty Gun Works 13.7”
  • Twist: 1/7 twist,
  • Threads: 1/2-28 threaded muzzle
  • Lower Receiver: Mil-Spec 7075-T6 aluminum forgings,
  • Lower Receiver Finish: Type III hard anodized
  • Buffer System: Intermediate (A5) buffer
  • Fire Control Group: Sons of Liberty Gun Works Liberty Fighting Trigger (LFT)
  • Trigger Pull: 5.5 lb pull
  • Stock: Bravo stock.
  • Upper Receiver: Made from Mil-Spec 7075-T6 aluminum forgings,
  • Upper Finish: Type III hard anodized exterior and interior
  • Rails: Sons of Liberty Gun Works M89 Drive Lock rail system, SOLGW NOX 9-port pinned and welded muzzle device.
  • Includes: Allen Tactical Soft Case, three 30-round mags, SOLGW sticker and patch, copy of the US Constitution, steel M-LOK QD socket, and lifetime warranty certificate.


Has serial number:

Additional Information

SKU M4-89-13.7-5.56NATO-BLK
UPC 800000100352
Weight 1.70 LBS
Has serial number yes