UTG Pro TLU001 Receiver Extension Tube Mil-Spec AR-15 6 position Black Hardcoat Anodized Aluminum Rifle $21.97
UTG Pro MTU001 Pro Quad Rail Handguard Drop-In Aluminum Black Anodized Hardcoat Picatinny Rail, For Carbine AR-15 $59.97
UTG Pro MTU019SS Pro Slim Rail Handguard Free-Floating 15" L Aluminum Material with Black Anodized Finish, KeyMod Slots & Picatinny Rail for AR-15 $114.97