Trijicon Bright & Tough Night Sights feature a shock-resistant design and lamps capped with sapphire jewels to help evenly distribute the light while still providing resistance to solvents to the lamp. The lamps are also cushioned with silicone rubber and are contained within aluminum cylinders for additional protection.

Fits Sig Sauer models calibrated for .40S&W and .45ACP including P220, P229, P240, P245, Pro233, Pro2340, Pro245, and also the P938.