Shop Accessories (4) 4-Rail Hand Guard for SG 551/751450.00$ 4-Rail Hand Guard for 551, MIL-STD-1913 Picatinny Available on backorder 4-Rail Hand Guard for SG 551/751 quantity Add to cart SKU: BT-21166 Category: Accessories (4) Description Description 4-Rail Hand Guard for 551/751, MIL-STD-1913 Picatinny Related products 551 Lower Hand Guard 110.00$ Tactical Picatinny Rail, Upper 100.00$ Adjustable Buttstock, Black 325.00$ Magazine 20-Rounds for 751 SAPR w/o notches 75.00$