Harris Bipod questions, going on Ruger Mark 2

[imq707s]

I'm getting ready to order a Harris Bipod for my new Ruger Stainless all-weather in 7mm mag. I was looking on the Midwayusa.com site and found two different models of harris bipods that will work. One is model 1A2-L and the other is 1A2-LM. The only difference between the two is that the 1A2-LM has "notch adjustment legs". What does that mean? They are both the same price and both extend from 9 to 13 inches. Could someone pease tell me the difference between the two models. One more thing, I know that I'm going to have to do some custom work in order to get the bipod to fit on my Ruger since it doesn't have a sling stud in the front of the stock. Could someone please give me some advise on how to mount this thing. Thanks.

 

[Poodleshooter]

I'd suggest another stock. Looking at my AllWeather in .308 I noticed that the stock is very "skeletal" inside. There may not be enough solid polymer to mount that sling stud. I believe that the LM locks at several different places along it's length, providing a wider range of adjustable height settings. I have a regular L model which locks only at the predetermined stops (3 of 'em if I remember right off the top of my head). Also, are you using this for a sitting support bipod??