Great alternative to polymer with a small foot print - A3 Industries Compact Modular Vertical Foregrips

2.75 hk is perfect length for all applications. Was missing the retaining nut but I contacted a3 tactical and they sent the missing part the next day . Their is no 5 star vertical grip out their as everyone’s needs are different . But if you are looking for a piccatiny grip then this is what I’ll be buying again if I need another