I added bow chocks to my M15 too Rusty, but rather than mount them on the toe rail itself as Connie did, I completely removed about 8 inches or so on each side. I trimmed the rail back to an existing mounting bolt that was within a couple inches of the new leading edge so it's still securely attached (and angled and finished the end off as original). Of course the location of those holes is a bit different on each side, so the rail-ends aren't perfectly even side to side. I reused the existing mounting hole from the trimmed sections for one side of the chock so I only had to drill one additional hole per side. Those existing holes weren't in same place side to side either, resulting in the chocks being in slightly different locations as well. But it doesn't bother me, and I'm easily bothered by stuff like that so it must be okay. What matters is the chocks work perfectly. t Tom Smith & Jane Van Winkle Sandpoint, Idaho M15-345, Chukar M17-064, Unnamed