Pearce Grip PG-365X extension installed on a factory SIG 365X/XL 10rd magazine. This combination adds 1/2" in grip length and does not add additional capacity to the magazine. These are the SIG 365X/XL magazines with the indent restrictors. Our extensions will not work on the new variant 10 round magazines so these will only be available as long as inventories last on these types of magazines.

Available for shipping to all states.

The included magazine has been modified from its original factory condition with the installation of components manufactured by Pearce Grip Inc. As such the magazine manufacturer has no express warranty of the fit and function of the Pearce Grip components. All original magazine components that are not used for the installation will also be included in the packaging.