Go to www.strapworks.com click on field Specific/Tactical Products. AR-15 Sling $7.11 (kit, everything you need) I didn't use this kit but bought enough materal to custom make 4 slings at about $10.00 a sling.
I did't know how to sew. But I bought the speedy stitcher sewing awl & the instructions were real easy. The only problem I had was making a straight line with my stitch. The stitching materal is a tan color & my webbing is black, so I took a black permanent maker & colored it after I made my stitchs. Camoed right in.
For those that don't have the means or skill to sew you can "tack" your rig together the way you want with just a few stitches then take it to an upolstery shop or somewhere else that has an industrial sewing machine and get a professional job in about done in about five minutes pretty cheap.
I went to www.strapworks.com and I am trying to decide which material would be better for a sling. I priced it out and to build the new sling that you can't get from Magpul right now it would be under $18.00 including shipping, that is with polyester webbing. I am also on the fence about the width(1", 1 1/4" or 1 1/2").
Nice site! I don't care for the Tac sling but everything I need to make a standard two point is there. There should be plenty of webbing left over for other projects. It appears I will have find the snap ring to attach it to the rear of my XCR receiver. Any ideas?