This Remington manufactured checkered pistol grip walnut butt stock with butt plate and butt plate mounting screws is for the model 11-48 semi-auto shotgun in 12 gauge and is in very good condition with light dings, handling marks and honest wear.  There might be a very small chip at the toe ahead of the butt plate.  (file photos)

Note: Remington model 11-48 semi-auto shotguns with the following gauges and serial numbers have been observed with this part: 

12 Gauge: 5071108, 5075577 & 5112147