Boyds Hardwood Gunstocks Stevens 311 20 Gauge Semi Beavertail Forend Walnut Finished. The manufacturer suggests that Boyds Hardwood Gunstocks Stevens 311 20 Gauge Semi Beavertail Forend is compatible with Stevens 530 Western Auto SD52A Springfield Double Springfield 5100 Springfield 1915 Double Western Field SB300 Western Field SB300C Western Field SB311 C Western Field SB530 Stevens Double Stevens 5100 Stevens 315 Stevens 311 Savage Stevens 1915 Double Shapleigh Double Sears 5100 Sears 101.7C Sears 101.7 Wards Western Field 52 Wards Western Field 51ABoyds Hardwood Gunstocks 4D1373S12117: Stevens 311 20 Gauge Semi Beavertail Forend Walnut Finished