I purchased these grips for my Sig Sauer 716 Gen 2. I had first purchased handrails but I didn't realize that they were for picatinny rail but that's okay because I put them on my 5/16 and they look awesome anyway the key mod system worked really great with these grips they look good feel good and I put about 500 rounds down range and they feel awesome at first they were a bit snug to put in but I got the hang of it and they make the Gen 2 look really slick I am happy I purchased these it took me a while to find out about bravo, thanks "YouTube" I'm very happy and for the price it was a real bargain of a steal if you're looking for awesome key mod handrails, that are really nice slick and will go with your key mod rail system these are what you want to purchase, and they don't break the piggy bank. the grips are awesome they're not too bulky they snap into place and they're real easy to put in I'm happy I purchased them thank you bravo look forward to many more purchases