He's still in business, as far as I can tell from driving by, but from what I've heard he no longer sells guns or ammo. Still has archery & fishing supplies, at least from the signs out front.
If you slide over to Plaistow on Rte. 125, you'll find Dave's Sporting Goods and Stateline Archery and Firearms. Both great gunshops within a mile or so from each other.