Strike Industries AR Enhanced Castle Nut & Extended End Plate Version 2 Black One Size. The TRIBUS is next iteration of their previous AR-ECN&EEP. New features include two addition QD mounting points added to the left & right side of the extended end plate. Totaling in 3 QD mounting points. The extended end plate's QD mounts are pushed back away from the webbing of the primary hand allowing for better weapon manipulations in tight spaced and under stress without the startling pain that can result from a pinched hand when using a sling attached to a standard flat QD end plate. Another big improvement is the added anti-rotation castle nut feature. Once installed use the set screw to prevent the castle nut from backing out during weapon usage. The TRIBUS is available in their anodized color line. Specifications for Strike Industries AR Enhanced Castle Nut & Extended End Plate: Manufacturer: Strike Industries Gun Make: AR Platform Quantity: 1 Condition: New Gun Type: Rifle Features of Strike Industries AR Enhanced Castle Nut & Extended End Plate Antiroation Castle Nut 3 QD Mounting Points Extended End Plate for prevention of pinching hand when using a sling attached Staking not required castle nut will not back out once screw is threaded. Package Contents: Strike Industries AR Enhanced Castle Nut & Extended End Plate 1x Extended castle nut 1x Extended end plate 2x M3x12mm set screw 1x 1.5mm hex key 1x Warning card Strike Industries SI-AR-TRIBUS-BK: AR Enhanced Castle Nut & Extended End Plate Version 2 Black One Size