The Marlin Handguard Adaptor allows installation of Midwest Industries Inc M-Lok(TM) MI-MARMR hand guard on MarlinA(R) 336/1894 rifles with barrel band that the distance from the front of the receiver to the barrel band screw is 8-3/8". Designed to allow installation of MI-MARMR MarlinA(R) M-Lok(TM) Hand Guard on barrel band Marlin rifles Works with MarlinA(R) 336/1894 rifles with barrel bands 2.0 Inches overall length Constructed from 6061 aluminum, hard coat anodized for a lifetime of service Includes mounting screw, clamps directly to the magaxine tube and barrel 100% Made in U.S.A. with a lifetime warranty Weight 0.8 oz Mfg: Midwest Industries