Forward Controls Design MSQ-H (MLOK, Sling adapter, QD, Heavy) is made from 4140 steel and black nitrided. Designed for strength and durability over weight.
Its not a secret that sling QD mounts made of aluminum can wear out quickly from the abuse they take. Steel mounts are much more robust and withstand the constant abuse over a long period of time.
The MSQ-H is rotation limited to keep the sling from getting tangled and includes the MLOK hardware needed to mount it to your MLOK compatible rail or stock. 5/32 hex wrench is not included.
Recommended torque is 35 in/lb for metal mounts, or 15 in/lb for plastic.