That's a great time to order a stock set, just send em the frame in a small flat rate priority mail box, costs about $10 insured with delivery confirmation, they'll get it in 2-3 days, I haven't sent a frame in with a stock for a long time, always order a stock set at the same time.
And the do sell the BC stock set, that's in the FAQs also, although the part numbers now may have an additional letter or two prefix, so it may be best to call and ask for the right part number before you put it on a barrel order. Or just buy a set in the H&R classifieds here.
Tim