Patented 2x4 Target Stand Brackets AR500 Steel - 250lb Capacity - Powdercoated - Most Popular Stand On Amazon https://www.amazon.com/dp/B00VR6XL16/ref=cm_sw_r_cp_tai_z.9wAb5PV2523
These are what I use. They work great. The 2x4 can get eatin up though.