Here's a bit more info on those pegs. On the RIVCO site they say this... "These pegs are durable satin black powder coated and will work with all RIVCO mounts. They have 3/8” mounting bolts and can be used with most other brands’ mounts."
http://www.rivcoproducts.com/products/product.php?productid=282&cat=221&page=1
