Sightmark 300BLK (7.62x35mm) Boresight

The red laser dot came up spot-on at 50 yards after just one shot, saving me a ton of ammo and time at the range. It chambers smoothly and feels just like loading a real round, which is exactly what I needed for my zeroing session.

I chambered it like a regular round and the red laser lit up exactly where my crosshairs were—saved me a trip to the range. Only wish it had a switch to turn off the laser without pulling it out.

I was pleasantly surprised how snugly it fit in the chamber—no wobble at all. The laser was bright enough to see even in a dimly lit garage, which made zeroing my scope much quicker. Only minor issue is the on/off button feels a bit stiff, but it works fine.