The Bureau of Alcohol, Tobacco, Firearms and Explosives has approved the design of SB Tactical 's new adjustable Pistol Stabilizing Brace. The new braces are ideal for PDW pistol platforms, including the SIG MPX pistol.
According to the ATF letter, installation of the brace will not change the classification of the pistol in accordance with GCA provisions. SB Tactical has accelerated the development of two adjustable brace models, the MPX PSB and SBPDW.