Midwest Industries G4 Handguard - 12.625

4140 Heat Treated Barrel Nut Barrel Nut and Wrench Included Features Patented 4140 Heat Treated Torque Plate 6061 Aluminum Type 3 Hard Coat Anodized Continuous MIL-STD 1913 Picatinny Top rail Five Integral Anti-Rotation QD Sling Sockets Super Slim 1.5" Outside and 1.3" Inside Diameter Seven Sides of M-Lok(TM) 5-Slot Polymer M-Lok(TM) rail included Fully Dehorned and Deburred 100% Made in USA MI Lifetime WarrantyInstalled Weight 10.50" - 8.8oz 12.625" - 9.9oz 13.375" - 10.6oz 14.0" - 11.0oz 15.0" - 11.5ozIMPORTANT COMPATIBILTY NOTES!Due to the many different dimensions in BILLET UPPER RECEIVERS on the market, please contact your billet upper receiver manufacture to insure fit of this handguard. This handguard is compatible with standard forged upper receivers.