The B& T BT46-NC PSR Atlas Bipod with an American Defense QD ARCA mount (installed) is a precision-grade support solution built for long-range and match rifles. It pairs Atlas’s PSR (Precision Shooting Research) leg system with American Defense’s low-stack quick-detach ARCA interface for fast, repeatable mounting to Arca-style rails. The combination gives a compact folded profile for transport and a broad, user-adjustable height and stance range for stable shooting from prone, barricade, or bench. B& T BT46-NC PSR Atlas Bipod Standard Height PLUS American Defense MFG QD ARCA Mount (Installed) BT46-NC-AD-ARCA-BP-STD