I am actually waiting to hear back from DD on their gas block attachment for this model. If they have changed and went the corner cutting route also, then they are a no go I doubt it cause all my DD in 556 are pinned and set screw. I also waiting on the barrel estimate. However The Scar is at 5000. Which is roughly 70% greater barrel life. Not to mention the immense superior differences of the Scar ability to handle heat. As for the DD the barrel is also chf and chrome lined so the functional benefits are there by design. The Geissele is likely able to prrform possibly beyond both. Seekins is not a mil-spec durable weapon, that's been established. Shooting it in slow bench situations may get you to 3000 but no way would you get the durability of a Scar, Geissele and even the DD. And accuracy also has alot to do with shooters skill so variables all factor. But without a doubt Seekins is way overhyped.