TacFire Front & Rear 45 Degree Spring Loaded Airsoft Flip Up Iron Sights Airsoft Guns a whisper quiet sound signature and Proton Case a whisper quiet sound signature and outstanding efficiency means it was a drivetrain that could compete with any high end marker out there in terms of on field performance This means that you can fit more shots into any given amount of time These sights would be a great choice if you would like to quickly transition from using optics to iron sights by just canting your rifle to a 45 degree 45 degree iron sights are constructed of T6 6061 Black anodized aircraft grade aluminum for strength and durability