Streamline Discs

Proton Engine 2025 MVP Open Edition

The Engine is a straight-to-overstable distance driver that higher-power players will be able to stand up and get a full glide-filled flight from, while average-power throwers will get shorter straight flights with a reliable finish.

Proton is Stramline Discs polymer blend that offers high durability and is designed to withstand the roughest conditions. Proton plastic is produced with some of the most durable plastics in the industry. It has immense abrasion resistance from impact and as a result very slow wear, giving it a very long life. Streamline Proton is a grippy translucent candy premium plastic in vibrant colors featuring a 2-foil stock stamp.

The numbers that usually appear on the top of the disc indicate the flight characteristics of the disc. The most commonly used way to tell the flight characteristics is to use four numbers: speed, glide, stability and fade.

Disc golf discs usually weigh between 140 and 180 grams. The lighter the disc, the less stable it is. Conversely, the heavier the disc, the more overstable it behaves.