Our friend Art NeerGaard has a way of making purchases memorable. In addition to great ordered products he sends out pretty unique gifts. Most recent is his magazine dipstick. Simply drop in between case necks down to follower and you can tell whats left in the mag. One side is for 7.62/.308 and the reverse does 5.56/.223. Both go to 20 rnds. so you guys with normal 30 rnd mags will need to improvise. What a neat idea. Thanks again Art. Whatta Hobby!