This is the G3A4 configuration introduced in 1974 for front-line service.
This reminds me of one of the more cool things I saw in Germany when I lived in Germany 91-93. At church, I was in charge of the young men's program. We only had a couple young men (12-18) but I was in charge. This included the Sunday instruction for a 50 min block as well as activities during the week. We made an RC glider, did a campout, and that sort of thing.
Our congregation was part of a larger regional unit called a "Stake", which is an organizational unit composed of all the local congregations on a given area. There was also a Stake Young Men's President (Presidency -- President and 2 counselors). They organized things at the regional level and helped the local congregations with their programs. I worked in Munich but lived about 50 miles outside of Munich (yes I commuted that 50 miles each way every day -- the majority of which was Autobahn). Our Stake, or regional church group was the Munich Stake and the Stake Young Men's President was an active Bundeswehr officer. I think he was in a Panzer unit but I don't remember. I actually knew the guy from when I was a missionary in Würzburg about 5 years earlier. He was a Panzer office (Major) at that time and was what was called the "Ward Mission Leader" or the member of the local congregation who was the liaison between the local congregation and the full time missionaries, so I had worked a lot with this guy back then and he had invited us back then to a Bundeswehr torchlight assembly at an old amphitheater. That was pretty cool.
Anyway, now in Munich, he'd been promoted and was probably some sort of Colonel equivalent -- I don't remember -- and was acting as the Stake Young Men's President, and I as the local Young Men's President for our congregation technically reported to him. He asked me to come by his office at work so we could sit down and go over how our local young men were doing, upcoming regional activities, etc. So he gave me the address ad I drove to this Bundeswehr base, parked somewhere on the street since e were in the city, and walked to the main gate. I talked to the guards and said that I was there for Col Whatever his name was. They took my passport, had me fill in a log, made some calls, etc. I don't remember all that happened. However, what I do remember, is that the guards all had actual G3 rifles on their shoulders. Not a picture in a book or an H&K 91 hanging up as unobtanium in a gun store (expensive $$$ to a guy like me). But right there in front of me. I didn't say anything and obviously didn't get a close look or get to handle one, but was mesmerized by having a couple actual G3 rifles right in front of me. Needles to say it was pretty cool. It was also pretty cool to be escorted [by a guard with a G3] to the guy's office once the permission finally came for me to enter the base and he had a big office with fancy couch or chairs, table etc and an attendant who brought some sort of cake or finger food, fizzy water, etc. That was pretty cool too.
As a missionary (87) in the same town I was now living nearby and going to church in while working in Munich, there was a German Panzer base on the outskirts of town, and I guess a maneuver range a few miles down the road. One day we road our bikes by the Panzer base and there was a big lineup of Leopard tanks with engines running just sitting at the gate. We drove down the road on our bikes to visit a guy from the local congregation who was a student there at the time and while we were talking to him all this noise started passing by. We looked and right there a long line of Leopards was driving down through road. That was cool.
I also saw Tornado jets a few times doing low level flying and a few times we saw original M1 Abrams tanks of the US Army on flat cars in a German train station. Germany was an interesting place in the Cold War times.
(in our church the positions are all lay positions -- no paid clergy and you are asked to hold a position as a volunteer for a few years and then you are released and called to another position)
Sorry for the long story based on the mention of a G3 rifle. It just reminded me of being at the Bundeswehr base and seeing real G3 rifles on the guards there and then remembering other things I saw whille there as well.