TruGlo TG231G2 Tritium Green Tritium Front & Rear/Black Nitride Fortress Frame, Compatible w/Most Glock Except MOS 45 ACP/10mm Auto, Front Post/Rear Dovetail Mount CAT-49 Muzzle Energy: 2606 ft lbs

Muzzle Energy: 2606 ft lbs

Material: Mahogany

Muzzle Energy: 651 ft lbs

Rounds Per Box: 333

Style: Protector

TruGlo TG231G2 Tritium Green Tritium Front & Rear/Black Nitride Fortress Frame, Compatible w/Most Glock Except MOS 45 ACP/10mm Auto, Front Post/Rear Dovetail Mount CAT-49 Muzzle Energy: 2606 ft lbsType: Front Rear Set Frame Material: Steel Frame Color: Black Nitride Fortress Firearm Fit: Glock 21 Base Configuration: N A Style: Square Front U Notch Rear Front Material: Tritium Rear Material: Tritium Front Color: Green Rail Size: N A Windage Adjustment: N A Elevation Adjustment: N A Fiber Diameter: N A Firearm Type: Handgun