Mine came with a thread protector included in the small box w/ the bolt and cable lock. They must have Heman installing the muzzle brakes at factory, was scary trying to get the jam nut loose in order to remove it. I don't hunt with hearing protection so the muzzle brake is a no-go for me, also shortens and lightens the gun ever so slightly without it. Comes in at 7 lbs w/ a Bushnell 3500 on top using the exceptionally heavy Leuopold PRW rings. Mine shoots ~1.5 MOA, although I've only put the cheapest Federal Non-Typical Whitetail 150s through it so far. The shortness is it's biggest feature, light and easy to handle. Also being so short it fits nicely into the shorter Ruger 10/22 Allen softcases.