Briley Tubular Magazine Spring: 40 Inches

The 40 inch spring is suitable for all Briley extensions up to plus 6. The spring may require trimming on some of the shorter extensions.

These springs can be trimmed to reduce the amount of force required to insert cartridges into the magazine however it is recommended that they initially be used in their full length as they will take a set thereby reducing their overall length. Trim in small amounts. A spring that is too short will not eject the last few cartridges efficiently out of the magazine resulting in failure.