Magpul's new MOE Slim Line series of products are a great drop-in upgrade to your favorite AR-15 rifle. The new MOE SL hand guard is similar to the MOE hand guard but features a slimmer profile allowing operators an increase in weapon manipulation and controllability. The new hand guards are M-Loc accessory compatible which allows you use of M-Loc accessories, or you can convert M-Loc back to a picatinny rail platform. MOE SL hand guards are constructed of reinforced, heat resistant polymer which offers you a high level of durability in even the harshest environments. Whether your needs are for recreation, duty, or military service you need Magpul gear to get the most out of your rifle.