B5 systems' trigger guard is a direct replacement for ar rifles.Its ideal use is for milspec forged ar lower receivers and features a generous size which allows for glove use.Constructed of 6061 aluminum with milspec type iii anodized finish.Finish: Black AnodizedType: Trigger GuardModel: Trigger GuardDimensions: 2.10" W x 0.53" HMaterial: 6061-T6 Aluminum