Home / Hunting / Sons of Liberty Gun Works / Sons of Liberty Gun Works SOLGW L89 5.56mm 13.7" No BCG/CH Upper Receiver w/SF Compatible/ROTEX Mount M4L89UPPER-13.7-556-SF
Sons of Liberty Gun Works SOLGW L89 5.56mm 13.7" No BCG/CH Upper Receiver w/SF Compatible/ROTEX Mount M4L89UPPER-13.7-556-SF
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Aug 26, 2026
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The SOLGW L89 5.56mm 13.7" No BCG/CH Upper Receiver w/SF Compatible/ROTEX Mount M4L89UPPER-13.7-556-SF is engineered for shooters seeking precision and adaptability. This upper features a 13.7-inch barrel with a mid-length gas system, constructed from durable 4150 CMV steel. The SF Compatible/ROTEX mount ensures compatibility with SureFire and ROTEX suppressors, enhancing versatility in various shooting scenarios. The L89 handguard provides extensive M-LOK mounting options and integral QD sockets. Ideal for AR-15 builds, this upper does not include a bolt carrier group or charging handle, allowing for complete customization. Sons of Liberty Gun Works SOLGW L89 5.56mm 13.7" No BCG/CH Upper Receiver w/SF Compatible/ROTEX Mount M4L89UPPER-13.7-556-SF
