I agree with Rerun7. I have a box-o-slings (and other associated accessories). I came to the conclusion my rifle would be carried or slung more than anything. The padded VTAC sling is the go-to sling for carry and positions. No attachments. Just add what is needed for your rifle. It is amazing...
Springs are cheap. Pounding your head against the (non-locking back) receiver isn't.
Occam's razor (or Ockham's razor) is a principle from philosophy. Suppose there exist two explanations for an occurrence. In this case the simpler one is usually better. Another way of saying it is that the...
Take a look at 13:10 in the linked video. SinistralRifleman demonstrates tuning / trimming the Bolt Catch spring. Might be worth giving that technique a try.
Re: Kestral 4500NV with Horus ATRAG & Blue Tooth - Int
I have had one of these units since the first of the year. The BT works, after some tweaking. At one time the Horus Vision Gun Library software was on the NKHome site. I managed to download it and get it to work. As stated, it wasn't...