The Timber Creek Greyman 15" M-Lok handguard has a slim lightweight design integrated with modular flexibility. Durable aircraft grade billet aluminum body. Barrel nut included, no timing or shims required. Full length mil-spec 1913 picatinny rail. Requires low profile gas block.#html-body [data-pb-style="62DF828C9A114"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF828C9A121"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}