Originally Posted By M4ger:
If you're going to work on SR-25 or 308 rifles, the KAC muzzle device rod is paramount.
I've worked on a plethora of E3 guns with my Geissele RR without any adverse effects.
If you already have the RR, it won't hurt to use it.
I am going to buy both, as the KAC, from what I can see handles the 15 and 25, and there is a 25 in my future,
The Geissele will handle the other rifles, right tool, right job, no issues....we preach that to our machinist at work.