u/Hoyle33

As some of you might have seen in the MP5 sub, I have been struggling with accuracy issues on my HK MP5 .22LR. I bought this rifle about a decade ago before they came out with the pistol version, and there was a guy down in Florida that specialized in cutting and threading the specific rifles. I was uneducated back then so I sent him $150 and my rifle and have been shooting it unsuppressed for a long time. Recently I started shooting it suppressed, and at 10:15 yards, I was missing by 6 to 8 inches. I put 200 rounds down this rifle yesterday for Father’s Day, and I can’t find a single bit of damage on the baffles or end cap. I think AAC just earned a customer for life, because I have no clue how it survived

I inspected my suppressor and I don’t see any sort of damage to the baffles or end cap. Before they came out with the .22LR MP5 pistol, it was only sold as a rifle, and I had the barrel threaded by some guy who’s out of business in Florida

I’m gonna have to hope that I have enough barrel left to cut and re-thread using a competent machinist. This is so frustrating

I have an MP5 in .22LR (HK stamp but manufactured by Umarex) that I cannot seem to sight in

Both the factory sights and red dot have bottomed out and I’m still shooting about 6” low at 15 yards

Any advice? I know most of this subreddit is for 9mm, but was hoping someone would have a good idea

When I plug in my headphone jack, I have full range of volume and sound. When I unplugged the headphones, there’s nothing. Both the headphone jack and the speaker look pretty gnarly as you can see in the pictures, should I just replace both and call it a day? Should I also replace capacitors? Brand new to all of this so any help is appreciated