Geissele 08-423B Border Patrol 5.56 NATO 18" Black RifleThe Geissele Border Patrol 5.56 NATO 18" Black Rifle 08-423B is a specialized firearm designed for law enforcement and security applications. Built with high-quality components and precision engineering, this Geissele 08-423B rifle offers reliability and accuracy in demanding situations. With its 18-inch barrel and chambered in the 5.56 NATO caliber, it balances maneuverability and effective range. The Border Patrol Rifle is tailored to meet the specific needs of professionals in law enforcement and security roles..yellow-box p {font-size:16px}.special-tab {color: #FFFFFF}.yellow-box ul li {font-size: 16px;}The Geissele Border Patrol is a rugged AR-platform rifle that maintains mil-spec functionality. Available in barrel lengths of 11.5", 14.5", 16", and 18", it features carbine, mid, and rifle-length gas systems, all made from durable 17-4 stainless steel. The gas block is secured with both pins and set screws to ensure precise alignment. To reduce weight, the Geissele Border Patrol Rifle is equipped with a skeletonized 20 Super Modular Rail featuring M-LOK slots and a keyed mating system to prevent handguard twist. The rifle's upper and lower receivers are forged from 7075 T6 aluminum and hard-coat anodized, and include stainless-steel take-down pins, a posi-lock safety, Ultra Duty magazine release, and Super Duty trigger guard. Additional features include Geissele's ambidextrous Government Charging Handle, a braided wire buffer spring for enhanced reliability, and ALG Defense’s Advanced Combat Trigger, which offers improved smoothness and corrosion resistance over standard mil-spec triggers. Features of the Geissele Border Patrol RifleAvailable in 11.5", 14.5", 16", and 18" barrel lengthsSkeletonized 20 Super Modular RailSuper Duty upper and lower receiverBraided wire buffer springALG Defense Advanced Combat Trigger Geissele Border Patrol 5.56 NATO 18" Rifle 08-423B