This video from Brownells Gun Tech features Caleb Savant demonstrating the installation of the Sons of Liberty Gun Works (SOLGW) M89 Drive Lock Rail, an M-LOK® compatible, free-floating AR-15 handguard. The tutorial covers the critical steps, including proper installation of the proprietary barrel nut to 40 ft.-lbs., securing the handguard with nut-bolt-sleeve sets torqued to 25-30 in.-lbs., and the use of a unique anti-rotation pin for enhanced stability, especially with SOLGW upper receivers. Essential tools required for the process are also highlighted.
This video is a product spotlight on the Sons of Liberty M89 Drive Lock Rail handguard for the AR-15 platform, presented by Brownells Gun Tech™ Caleb Savant. The video highlights the handguard's "rock solid" construction, featuring a full-length M1913 Picatinny rail, M-LOK® slots at multiple positions (including 45-degree angles), and robust anti-rotation tabs and a stainless steel barrel nut for extreme stability. It also details the unique barrel nut cuts that aid in torquing and the inclusion of an anti-rotation pin for enhanced lock-up if the receiver is drilled. A bonus M-LOK® QD sling swivel socket is also mentioned. The 11.5" version is specifically showcased, available only through SOLGW rifles or Brownells. The description includes a legal disclaimer about responsible and lawful use of firearms products.
You've reached the end! 2 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
