@ the guy that wrote the review beneath this one, those aren't pins, they're set screws. They were hard to remove because they were threaded in place. I do agree however that this thing was a royal pain to mount onto my JG AK-74. I had to slightly modify my gun with a hacksaw to make it fit, but it does fit. Once I got it mounted it was very sturdy. Over all its totally worth the buy.
Heavy, sturdy construction. Every thing that needs to be metal is metal. (it would be almost too heavy if it were all steel.)
Excellent shell locking and releasing system. Faster to reload than a 203 style.
NOT made in China.
Heavy. This will make your weapon VERY front heavy.
Difficult to mount compared to the rail-mounted launchers.
Instructions written entirely in Japanese, not a word of english.
Rating: [5 of 5 Stars!]