Welcome. I see your new here. I have a thread I hade concerning the same topic. I would send you a link, but I don't know how to do that. A quick search in should bring it up. By the looks of them it looks practical and easy. No modification to the rifle needed. I'd like one myself something soon. Hope this helps!
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery. - Sir Winston Churchill
Americans love to fight. All real Americans love the sting of battle. - General George S. Patton Sr.