Speaking of which one of my sons and I just got in. I think over the last 3 weeks we’ve dumped about 1200 rounds of brass cased 5.56 and 223 without any issues of any kind with these charging handles. 2 10.5 guns and one 20” rifle.
And Dean D if you read this that Bushmaster FN rifle I bought from you has been a solid gun. All I had to do was move the elevation knob to 4 and it’s been dead on. Very nice rifle to carry and shoot.
I've been buying Strike Industries extended latch charging handles. It's not ambi, but then again neither am I. Some of their products are made in USA, the ones that aren't are made in Taiwan. Which is at least an allied nation.
Here's my (probably Chinese) ambi charging handle, which I've since given away after repairing it.
From the photo, comparing it to a stock Springfield-Armory charging handle, one can see how the hook had bent. This caused the ambi-latch to not be able to hook onto the upper receiver.
I took needle-nose pliers and a file to bend the latch back into shape; and then to file the latch to ensure the latch would "pop-over" the upper receivers spot to prevent the latch from bending as such again.
I then ordered a Radian Raptor LT charging handle which has worked well for me. The original Springfield-Armory single-sided latch is merely kept as a spare now.