On a Contender... YES. Regardless of rifle or pistol they should work because of the hole spacing underneath the barrel. (I say that because I have used rifle forearms on 14in pistol barrels.) Now, with Encores... Well, that might be a problem. The spacing on the lugs is longer on the rifle than the pistols. If you use a system like Bullberry has you will not have any problems, HOWEVER, you are going to have to modify your rifle barrels by adding a new screw underneath your barrel because of the bar that they utilize. (Been there, done that…) If you use Strattions set up the only difference is the length of the bar. Obviously the rifle is longer. I have recently run into this problem when I bought a TC Custom Shop 16.5in Encore in 300 Whisper. I was thinking COOL, I can just put this on my handgun setup and my old furniture. Then I realized that TC set it up for rifle spacing. LOL LOONG story short, If you set up your forearm for the rifle you can swap them back and forth. Or at least mine will anyways.