Hi all, I recently was given a preaccutrigger .17hmr, it's grey laminated stock and heavy barrel, not sure of the model number for certain as it's not sitting here with me. My question is, can I buy an accutrigger to put in it or comparable? I think it seems like a cool little gun and since I got it for free figured May as well upgrade the trigger as everyone loves the accutrigger. Thanks in advance.