TACCOM has designed a +5 round extension for the 308 MAGPUL 20 round Gen M3 magazine. It will also fit the Gen M2 magazine as well with a minor modification.
Adding a little over 1.75" in height to your magazine, you can now monpod on the magazine while in the prone position with ease and comfort.
Designed to use the factory spring and locking plate, you simply remove the existing factory bottom plate and slip the TACCOM +5 extension in place. A #6 socket head cap screw holds the extension in place.The factory spring has more than enough energy and travel to feed ALL 25 rounds into your weapon.
Machined from solid Delrin barstock, this extension will take all of the abuse that you can dish out.
The design allows for easy removal so that you can take the entire magazine apart for cleaning