1A, 1S, or 1H? They are all AH fore arms. If 1H, C or D weight barrel? You want the fore arm to match the barrel profile. Also, be advised buying it without seeing it may result in it not matching your stock. A friend called Ruger not too long ago and they told him they would sell a stock and fore arm for ($460?) IIRC, I'm sure they would sell separate, but again, might not exactly match. As has been stated, Ebay or maybe Gunbroker are your friends here, too. Depending on year made, checkering could be different from original also, if that makes a difference to you.
Last edited by 21; 08/03/19.