I have a Remington 7600 pump that I would like to put a sling on. The rifle did not come with any sling attachment points. The after market hardwear that I have found all have barrel bands. I have been hesistant to buy them though because of potential hamronics issues which could affect the accuracy. I also don't want to mar the finish of the barrel. Neither of these concerns may be issues at all, but I'd appreciate any insight that you have. I'd also appreciate any installation pointers that you may have.