vic1593Sig 551 Handguard Set and gas block. These parts fit the Sig 551, Sig 551A1, and the Sig 556. The handguard is black. The gas block is grey. I purchased the handguard new from gateway supplies. It's had very little use. It is in like new condition. The gas block was purchased used from Gatewood supplies as well. It has signs of wear, but it works perfectly. The price includes shipping.
