XTS M-LOK Finger Stop, Black Anodized The XTS FSTP finger stop is an M-LOK handguard accessory with a black anodized finish. Its stop profile provides a defined contact point along a compatible handguard, giving the hand a physical reference. The M-LOK interface and black exterior identify this configuration. For shoppers comparing hand stops and finger stops, the FSTP model offers a focused contact-point accessory in the XTS lineup. Key Features Type: Finger stop / hand stop Interface: M-LOK Finish: Black anodized Specifications Brand: XTS Model: FSTP Shop the XTS M-LOK Finger Stop, Black Anodized at BattleHawk Armory.