I just found this out so maybe it's old news, but Talley - the guys that make the great scope mounts - also offer a line of custom gunsmithing products.
Barrel bands of all sizes, picatinny stock of various lengths, various inletted sling swivels including Winchester Supergrade replacements, blank bases, a crossbolt, classic bolt knob, steel replacement Tikka recoil stops for T3's, even a peep sight to go on their steel scope bases.
Some of the prices seem a bit steep for what you get but others seem like a bargain. Anyway, thought I'd pass this along since Talley makes really good stuff and is an excellent company to deal with.
Talley gunsmithing products