TTI Firepower PMAG Magazine Extension,

- Designed to work with stock spring.

- Overall weight 4.1oz.

- Length, 1 1/2 inch.

- Patented, proven push-pin design.

- Easily attaches and detaches from the magazine.

- No specialty tools, devices, or additional springs required for assembly/disassembly, simply pop off the insert at the bottom of the spring and slide on the extension.

- One piece design; no small parts to keep track of.

- Minimal length addition to allow usage while in a prone position.

- Holds 25+1 rounds on the PMAG20.

- Holds 30+1 rounds on the PMAG25.