The Browning 10-Shot Double Helix T-Bolt Magazine is easy to load, easy to carry and easy to use. The magazine features a torsion drive spring and interlocking gears to maintain proper timing and exact cartridge alignment for smooth, reliable feeding. The spring-assisted drop-free ejection feature allows for rapid magazine changes, while the smooth, rounded contours of the double helix with twin gripping grooves, tapered shape and slightly extended baseplate make insertion positive. A grey translucent body allows you to identify remaining cartridges easily. Ammunition can be removed by moving the exposed gear back slightly to drop each cartridge without using tools or scraping your fingers.