The SOLGW L89 .300BLK 8.5" No BCG/CH Upper Receiver M4L89UPPER-8.5-300 is a high-performance upper designed for close-quarters combat. Featuring an 8.5-inch barrel chambered in .300 Blackout, this upper provides excellent maneuverability and stopping power. The L89 handguard offers ample M-LOK slots and QD sling sockets for versatile accessory attachment. The barrel is constructed from 4150 CMV steel and features a pistol-length gas system for reliable cycling. This upper does not include a bolt carrier group or charging handle, allowing for complete customization.