The Accu-Tac 17S Spec-4 Bipod is built on the well-known BR-4 G2 platform, combining reliable performance with added versatility. With a 17S Spec adapter, this bipod ensures easy compatibility with all 17S Spec accessories, giving shooters unmatched flexibility to mount an Accu-Tac bipod on various firearms easily.Features :6062 T6 Aluminum Alloy/High Strength Steel Hardware"Minimum Height 5.12";"Maximum Height 8.12"""Minimum Stance 8";"Maximum Stance 12.25""18.5ozFlat BlackType III (MIL-SPEC) Hard Anodize