other products by KJ Works
Things I liked: Works in my KJ MK1.
Things I liked: The size of the magzine is so thin and compact. Also, It fits for both the mk1 pistol, and mk1 carbine. Imagine if you buy both guns for your setup, and you only have to buy one type of magazine!
Things I would have changed: The capacity is 17 rounds. For any gun, you'll go through this easily. It's best to buy at least 3 or more. I plan on buying 2 more for a total of 5. $20 for 17 rounds? I see it's a full metal magazine, but mp5 magazines cost just as much for 250 rounds.
What others should know: Very good gas preservation. It takes about 2-3 mags til you have to fill it up again. BB speedloaders work well with these mags.