diff --git a/game/reconstructed/mech4.cpp b/game/reconstructed/mech4.cpp
index d8b8ef2..7b74199 100644
--- a/game/reconstructed/mech4.cpp
+++ b/game/reconstructed/mech4.cpp
@@ -2148,6 +2148,24 @@ void
 				// master's exact clips.  Swapping the peer to the body channel RESTORES the
 				// original single-channel design (no new netcode).  BT_PEER_LEGCH=1 = old.
 				static const int s_peerLegCh = getenv("BT_PEER_LEGCH") ? 1 : 0;
+				// TURN-STEP ARMING for the body channel: the body Standing case only enters
+				// walk/reverse/stand -- it never arms the turn-in-place clip (state 4); on the
+				// master that arming comes from the LEG Standing case cross-arming both
+				// channels (mech2.cpp:937 note), which the peer no longer runs.  Arm/exit the
+				// body turn state here from the replicated turn (replMppr->turnDemand, from the
+				// replicated yaw rate + hysteresis above): standing + turning -> state 4 (body
+				// case 4 then advances the trn clip -> the peer STEPS through the pivot); turn
+				// stops -> back to Standing.  Walk/reverse transitions still own their exits.
+				if (!s_peerLegCh)
+				{
+					const int  bs = (int)bodyStateAlarm.GetLevel();
+					const bool turning = (replMppr->turnDemand > 0.05f
+									   || replMppr->turnDemand < -0.05f);
+					if (turning && bs == 0)			// standing + turning -> enter turn
+						SetBodyAnimation(4);
+					else if (!turning && bs == 4)	// turn stopped -> back to stand
+						SetBodyAnimation(0);
+				}
 				const Scalar replLegAdv = s_peerLegCh
 					? AdvanceLegAnimation(dt)			// old: re-derived leg SM
 					: AdvanceBodyAnimation(dt, 1);		// authentic: body channel, mj=1 poses skeleton