Quick view Angstadt Arms Angstadt Arms Ultra Light, Angstadt Aa055hgmlt 5.5" M-lok Rail Ultralgt $129.00 $116.00 Aggressive design, ultra light 5.5 free float hand guard.Its unique design features a very slim profile (1.375 id) that still allows for the installation of a sound suppressor of 1.40 in diameter and smaller to tuck inside of the handguard when used with... Compare Add to Cart