Re: CDI Precision Savage DBM feeler...
I will give you the benefit of the doubt that you read the first post and just don't know what 'AI' means...
AI = Accuracy International -- AI mags are what most of the after-market DBM setup are using these days (badger, surgeon, CDI, etc). Even Seekins, who designed his own mag due to shortages of AI mags at the time he designed his DBM system is coming out with an AI mag version now that they are available again.
But yes, basically gives you a heavy duty trigger guard/detachable mag setup that uses AI mags.