Area 419 Universal Weight-Tunable ARCALOCK Rail 14.25 in Black. As the rails have become more popular they have also seen the rise in popularity of rifle weight kits. With the introduction of the Manners TCS stock in late 2019 they designed and built an ARCALOCK weight system and are ready to make it available to the general public. This is the 14.25? Universal ARCALOCK Rail Specifications for Area 419 Universal Weight-Tunable ARCALOCK Rail: Manufacturer: Area 419 Color: Black Fabric/Material: Aluminum Hand: Ambidextrous Gun Type: Rifle Gun Make: Universal Gun Model: Universal Length: 14.25 in Width: 1.5 in Height: 1.5 in Weight: 6 oz Condition: New Country of Origin: USA Package Contents: Area 419 Universal Weight-Tunable ARCALOCK Rail Area 419 419-ALK-14UNIV5WT: Universal Weight-Tunable ARCALOCK Rail 14.25 in Black