I made mine from Dexion slotted angle..bit like man size meccano. Fully adjustable etc & you can find the stuff in a scrapyard or buy it from B & Q.
Toecutter.
i used an old G clamp http://i209.photobucket.com/albums/b...ixed/clamp.jpg
I modified this idea:
http://www.americanairgunhunter.com/sprngcompres.html
I prefer to have wood clamping the action rather than chance scratching it.
Works for me.
.
Jerry