Yankee Hill Machine Co., Inc. announced the addition of M-LOK to its line of hand guards for the AR style rifle. The new YHM-5290 S.L.M. and YHM-5320 MR7 hand guards were developed in response to customer demand. Previously, the company made KeyMod hand guards but not M-LOK.

The MR7 has a Picatinny type rail at the 12 o’ clock position and M-LOK attachment points every 45˚ around its circumference. The company states the MR7 will be available in carbine, mid-length and rifle lengths. Currently, Yankee Hill Machine lists the rifle length (12.7″) hand guard on its website with a suggested retail price of $160.

For a thinner hand guard, the S.L.M. is a credible option. The rifle length version of the S.L.M. weighs 9.7 ounces. Similar to the MR7, the hand guard has a Picatinny rail on top. M-LOK attachment points are at every 90˚ instead of 45˚. Like the MR7, different lengths will be offered. This rifle length rail system has a suggested retail price of $230.

Both hand guards are made of 6061-T6 aluminum and have a hard coat anodized black finish. A barrel nut, wrench, screws and instructions ship with these rails.

Despite following other standards to the market, M-LOK is growing in popularity with many companies offering guns equipped with M-LOK hand guards standard.