This Remington manufactured friction piece is for the model 11-48 semi-auto shotgun in 16 and 20 gauge and is in very good condition with honest wear. (file photo)
Note: Remington model 11-48 semi-auto shotguns with the following gauge and serial numbers have been observed with this part:
16 Gauge: 5522646, 5529558, 5550951 & 5564860
20 Gauge: