This is a gas blowback HK M27, I can find very little online about the rifle, except that they are very difficult to find and very few people can honestly tell me much about it. It has an 11" handrail that is exclusive to the m27 platform unlike the 416 platform. It is fully HK licensed and trademarked, it is all stock to my knowledge, and it performs beautifully. I have never fielded the rifle, I have just used it as decoration and to plink some targets with! It comes with 3, as of right now, non leaking magazines that work and feed flawlessly. I am mainly listing this rifle to gauge interest in it and to see if it would even be worth selling or if anyone knows more about it, I would love to learn! HK is my favorite weapon manufacturer and I would very much like to keep this rifle, but I would also very much like to start having money in my savings account and be able to get some things paid off!