Came to post this. If VLTOR is out of stock, BCM and Magpul make quality A5 extensions.
Looks like I'm down to BCM or nothing. Magpul and VLTOR and sold out everywhere that I can find after many hours of Googling.
BCM is good to go. Solid mil-spec or better components.
...I'm hoping to reduce "sproig" without going to pricey JP SCS or something.
I like the Tubbs flat-wire spring. Cheap, reliable, quiet.I was hoping to avoid BCM because of the multiple reports that the inside of their A5 extension are not very smooth and are very noisy when cycled. I'm hoping to reduce "sproig" without going to pricey JP SCS or something.
FWIW, a very small amount of grease on the interior of the extension tube and spring will make the "sproing" go away.