Commander vs Fullsize Grips

Fullsize grips (Left) use 126mm (17rd) and longer magazines.

The magazine and basepad extend below the grip.

Commander grips are undercut to allow 120mm magazines to sit flush and present as compact a package as possible.

They both use full length mainspring housings and mainsprings allowing for parts commonality across sizes.

Commander grips are not compatible with any magwells due to the undercut design.