So needless to say when I decided to buy a modern semi auto 7.62 rifle, that and being an H&K whore, drove me to purchasing the H&K MR762A1.
The buttstock is comfortable, and adjustable for five positions. By rotating the buttpad 90 degrees counter clockwise and pulling it towards you, it will come off and expose the takedown tool, and some storage space where you can place batteries, spare parts, or your weed. To me, this buttstock reminds me of the B5 SOPMOD stock.
The lower receiver has an ambidextrous safety from the factory. One thing with the safety on the H&K MR rifles, along with the parent 416 and 417's, is you can place them on safe with the hammer down. Apparently this was a requirement from an end user, so H&K implemented it across the board.
The magazine release is round, large enough to manipulate, and shielded against accidental release
The gas piston operating system is derived from the AR-18 design, which is a short stroke piston, meaning the piston comes back a short distance, hits an operating rod, which then pushes back on the anvil of the bolt carrier, unlocking and cycling the bolt group. Advantages with this over direct impingement is the gas is vented at the forearm, verse the receiver. H&K has been using this operating system since the G36 in the mid 1990's, then carried that over to the H&K 416 and 417. The piston itself is chromed, and has three gas rings on it in order to provide a good seal.
If you were paying attention to this entire fucking diatribe, you may remember the groove in the hammer that I said activates the firing pin safety. When the hammer releases, the lever gets pushed up by that groove, allowing the firing pin to go forward. One nice thing about a firing pin safety, is you can use match primers and not worry about slam fires. Even though I have never ever had that happen, but it could. Sorta like Godzilla coming out of the sea and destroying Tokyo. It could happen.
(Edit; After looking at the picture I am pretty sure that these are for installation of the ejectors. You have to remember that I am 5/4 fucking retarded)
The cam pin is pretty standard as far as cam pin's go. I am going to waste no more electrons on a description.
Also worth noting, while taking photos with my Sony A6000, the camera thought the top view of the bolt head was a face, due to the dual ejectors, so it went into portrait mode. This caused a sensible chuckle while reviewing the photos. It does look like a happy little bolt head though :).
Fit and finish is absolutely superb, with no cosmetic flaws of any kind that I could find. On a weapon at this price point, this is to be expected. And let's face it, its H&K, so of course it has good fit and finish.
The trigger is a two stage affair, breaking at about 5 pounds. The first and second stage are about equal in pull length, with the second stage being much longer than I am used to, as I am now used to Geissele triggers #Geisseleallthethings.
The continuous top rail of the MR762 allows the end user to mount a variety of optics, lights, lasers, sex toys, and widgets. Unlike a lot of the rifles that come with a flat top, the MR762 actually comes with a set of Troy Micro back up iron sights. This is a nice addition, and are actually some quality sites.
Unlike a lot of the H&K's you see in certain forums, propped up ever so carefully for sweet photos, and handled with velvet gloves, this gun is actually going to get used. If I draw a deer tag this year in Nevada, I will use this rifle to hunt, since, America.
So now that the technical aspects are all covered, we will start doing the fun stuff, like shooting it. Which I may or may not have already deflowered this thing, and actually have more content ready to go. Don't hold your breath on it, I sorta suck at this stuff lately.