When I first got my carbine, I added a red laser to it (CMR-201). Works great almost any time except outdoors in daylight. My initial calibration of this laser was aiming the iron sites at an object 25 yards out, and then adjusting the laser to be where the sights were pointing.
When I got my Vortex Spitfire AR-1x for Christmas, I calibrated it with the laser dot. Turn on the laser, point it at something 25 yards out, then adjust the Spitfire AR 1x scope to match the laser dot.
Thus, if you happen to have a laser module, you can get a pretty good initial alignment without firing a single shot. Line the laser up with the sights, then line the AR-1x up with the laser.
- DanT Phoenix, Az