Looking to put a red dot on an FN 510 and considered the ACRO....until this:
To confirm the ACRO P-2 could stand up to heavy recoil, Aimpoint tested it using 20,000 rounds of full power .40 S&W which generates nearly twice the G-force level of 9mm. Its ability to stand up to the heavy recoil of .40 caliber ensures the ACRO P-2 can endure the most punishing shock, vibration, and material stress that a semiautomatic service pistol can inflict.